On January 12, 2022, Microsoft began distributing January's monthly security updates/Windows Updates. "KB5009566" will be delivered for Windows 11 and "KB5009543" will be delivered for Windows 10 versions 21H2, 21H1, and 20H2. For more information on security bulletins, please refer to Microsoft's Security Update Guide.
There are 97 vulnerabilities fixed in this month's Patch/Update, including 6 zero-day vulnerabilities. It seems that there were no exploitable zero-day vulnerabilities this month, but the possibility of exploitation will increase in the future as information becomes available. If you have time to apply the update now, we recommend that you check the "update program" below and apply it as soon as possible.
■ Windows 10: Start button > Settings > Update & Security > Windows Update > Check for updates ■ Windows 11: Start button > Settings > Windows Update > Check for updatesIn "KB5009566" of Windows 11, Japanese IME bug has been fixed. However, please note that this does not fix a bug that caused some image editing programs to render colors incorrectly on certain High Dynamic Range (HDR) displays.
In "KB5009543" of Windows 10, the problem of Japanese IME is fixed like Windows 11.
In addition to Microsoft's monthly patch, updates for various browsers such as "Adobe" and "Microsoft Edge", "Chrome", and "Firefox" are distributed from time to time. Use "MyJVN Version Checker" etc. to make sure you have the latest version.
Table of Sponsored LinksIn the January 2022 "Windows Update", there was a bug that caused a specific IPSEC connection to fail. reported. As a result, VPN connection may not be possible. Please be careful while using it. There is also a problem with Windows Server, and it seems that the corresponding update program has been discontinued. Please note that there are also some other known bugs.
[Postscript] Many bugs have been fixed in the optional patch that started distribution on January 17th.
Microsoft has started distributing emergency optional patches for Windows. Addresses VPN connection issues and more. Install as needed On January 17 (local time), Microsoft began distributing emergency optional patches for Windows 10/11/Windows Server. This is a VPN connection issue caused by applying the January 2022 monthly security update.■ Symptom: After installing the January 2022 monthly security update, IP security (IPSEC) connections that include vendor IDs may fail. I have. VPN connections using Layer 2 Tunneling Protocol (L2TP) and IP Security Internet Key Exchange (IPSEC IKE) may also be affected.
Workaround: Vendor ID can be disabled in the server-side settings to mitigate this issue with some VPNs. Note: Not all VPN servers have the option to disable the use of Vendor ID.
■ Affected platforms:
■Resolution status: We are currently investigating and will provide the latest information in the next release. [Postscript] Fixed in the optional patch that started distribution on January 17
■Summary: Microsoft announced that due to a serious bug, the domain controller restarted and Hyper-V did not work. We have withdrawn the January Windows Server Cumulative Update because it is no longer available and the ReFS volume system is no longer available. → The distribution has now resumed.
Shortly after Microsoft released its January Windows Server updates, administrators who installed them began reporting a number of serious problems.
These issues included domain controllers rebooting endlessly, ReFS volumes becoming inaccessible and appearing as RAW filesystems, and Hyper-V not starting on servers. matter.
Severe security issues have also been fixed, but Windows Server users should be aware.
■ Affected platforms:
Microsoft pulls new Windows Server updates due to critical bugsMicrosoft has pulled the January Windows Server cumulative updates after critical bugs caused domain controllers to reboot, Hyper-V to not work, and ReFS volume...www.bleepingcomputer.com] Detailed information was provided by Microsoft, so I will add it.
Summary: After installing KB5009555 on a domain controller (DC), affected versions of Windows servers may reboot unexpectedly. Note: Windows Server 2016 and newer are more likely to be affected if the DC is using Shadow Principals in an Enhanced Security Admin Environment (ESAE) or in an environment using Privileged Identity Management (PIM). increase.
■Resolution status: Currently under investigation and will be updated in a future release. [Additional note] Fixed in the optional patch released on January 17th
■ Affected platforms
■Summary After installing KB5009555, IP Security (IPSEC) connections that include vendor IDs may fail. VPN connections using Layer 2 Tunneling Protocol (L2TP) and IP Security Internet Key Exchange (IPSEC IKE) may also be affected.
Workaround: Vendor ID can be disabled in the server-side settings to mitigate this issue with some VPNs. Note: Not all VPN servers have the option to disable the use of Vendor ID.
■Resolution status: We are currently investigating and will provide the latest information in the next release. [Additional note] Fixed in the optional patch released on January 17th
■ Affected platforms
Windows Server 2022View announcements and review known issues and fixes for Windows Server 2022docs.microsoft.comThe known bugs in Windows 11 "KB5009566" are as follows. That's right.
Symptom: Colors in image editing software may not display correctly on some high dynamic range (HDR) displays. There are cases. This phenomenon occurs frequently in white and may appear in bright yellow and other colors.
This issue occurs when certain color rendering Win32 APIs return unexpected information or errors under certain conditions. Not all color profile management programs are affected, and color profile options available in Windows 11 settings pages, including the Microsoft Color Control Panel, are expected to work correctly.
■Resolution status: We are currently working on a solution, and plan to provide a solution in late January.
The known issues with Windows 10 "KB5009543" are as follows.
Symptoms: On devices with Windows installations created from custom offline media or custom ISO images, this update causes Microsoft Even if Edge Legacy is removed, it may not be automatically replaced by the new Microsoft Edge. This issue is caused by custom offline media or ISO images slipstreaming a standalone servicing stack update (SSU) released after March 29, 2021 into the image without first installing this update. Occurs only when created.
Note: Devices that connect directly to Windows Update to receive updates will not be affected. This includes devices using Windows Update for Business. Devices connected to Windows Update will always receive the latest SSU and the latest Cumulative Update (LCU) without any additional steps.
Workaround: To work around this issue, first slipstream an SSU released after March 29, 2021 to a custom offline media or ISO image, then slipstream the LCU. please give me. To do this with the combined SSU and LCU package currently used in Windows 10, version 20H2 and Windows 10, version 2004, you need to extract the SSU from the combined package. Extract the SSU by following the steps below.
Unzip Windows10.0-KB5000842-x64.msu /f:Windows10.0-KB5000842-x64.cab.
Extract the SSU from the previously extracted cab using the following command line: expand Windows10.0-KB5000842-x64.cab /f:*
This example will result in an SSU cab named SSU-19041.903-x64.cab. Put this file into the offline image first and then into the LCU.
If you have already encountered this issue when installing the OS using the affected custom media, you can mitigate this issue by installing the new Microsoft Edge directly. If you need to deploy the new Microsoft Edge for business broadly, see Download and deploy Microsoft Edge for business.
Symptom: After installing the June 21, 2021 (KB5003690) update, some devices may experience July 2021 You may not be able to install newer updates, such as updates after May 6th (KB5004945). At that time, the error message "PSFX_E_MATCHING_BINARY_MISSING" is displayed.
Workaround: See KB5005322 for details and workarounds.
Symptom: After installing this update, using Remote Desktop for devices in untrusted domains may If you connect using smart card authentication, the connection may fail. At that time, "Your credentials did not work. The credentials used to connect to [device name] did not work. Please enter new credentials." It says "The login attempt failed".
■Workaround: This problem is solved by using KIR (Known Issue Rollback). Please note that it may take up to 24 hours for this resolution to automatically propagate to unmanaged personal and unmanaged business devices. Rebooting your Windows device may apply the solution sooner. For enterprise managed devices that have installed the affected updates and experience this issue, it can be resolved by installing and configuring the special Group Policy linked below.
Note After setting the group policy, you must restart the device. For more information, see How to deploy known issue rollback using Group Policy. For general information about using Group Policy, see Group Policy Overview.
Group policy installation file.
Important: Make sure you are using the correct Group Policy for your version of Windows.
* Bug information about Windows 11 is summarized on the following page.
Windows 11: Bug information summary We have summarized the known bug information about "Windows 11". Use it as a reference when purchasing a PC or upgrading from a Windows 10 PC. Regarding the free upgrade to Windows 11, basically the Windows 10 currently in use...enjoypclife.net2022.02.20* Trouble information about Windows 10 They are summarized on the following pages.
Windows 10 May 2021 Update 21H1: Bug information summary We have summarized known bug information about "Windows 10 May 2021 Update 21H1". Please refer to it when updating. Basically, "Windows 10 May 2021 Update 21H1" is the Windows you are currently using...enjoypclife.net2021.05.20] button. Due to browser cache, the latest information may not be displayed.
*If you have a problem with applying an "update program" and you know the "update program" that caused the problem, you may be able to resolve the problem by manually uninstalling it. In that case, please refer to the following articles. After Windows 10 May 2019 Update (1903), bugs are automatically fixed, so the following work may not be necessary, but you can also use manual uninstallation depending on the situation. .
If you fail to apply the "update program", "Microsoft Japan Support" explains how to deal with it on the following page. Refer to it if it doesn't work.
January 2022 "Monthly Patch/Windows Update" is now available.
Applies to: Windows 11 Maximum severity: Critical Highest impact: Remote code execution Related knowledge base or support web page: 5009566
Applies to: Windows 10 v21H2, v21H1, v20H2, v1909 Maximum Severity Rating: Critical Highest Impact: Remote Code Execution Related Knowledge Base Article or Support Webpage: Windows 10 v21H2, v21H1, v20H2: 5009543 Windows 10 v1909: 5009545
Applies to: Windows Server 2022 Maximum severity: Critical Highest impact: Remote code execution Related knowledge base or support web page: Windows Server 2022: 5009555
Applies to: Windows Server 2019, Windows Server 2016, and Server Core installations (2019, 2016, v20H2) Maximum Severity: Critical Highest Impact: Remote Code Execution Related Knowledge Base Articles or Support Webpages : Windows Server 2019: 5009557 Windows Server 2016: 5009546
Applies to: Windows 8.1, Windows Server 2012 R2, Windows Server 2012 Maximum severity: Critical Highest impact: Remote code execution Related knowledge base or support webpages: Windows 8.1, Windows Server 2012 R2 Windows 8.1, Windows Server 2012 R2 Security Only: 5009595 Windows Server 2012 Monthly Rollup: 5009586 Windows Server 2012 Security Only: 5009619
Affected: Microsoft Office Maximum severity: Critical Highest impact: Remote code execution Related Knowledge Base Articles or Support Webpages: For more information on security updates, please refer to the Security Update Guide please give me.
Affected: Microsoft SharePoint Maximum severity: Critical Highest impact: Remote code execution Related knowledge base or support webpage: For more information on security updates, please refer to the Security Update Guide please give me.
Affected: Microsoft Exchange Server Maximum severity: Critical Highest impact: Remote code execution Related knowledge base or support web page: 5008631
Available for: Microsoft .NET Maximum severity: Important Highest impact: Denial of service Related knowledge base articles or support web pages: For more information on security updates, please refer to the Security Update Guide.
Applies To: Microsoft Dynamics 365 Maximum Severity Rating: Important Highest Impact: Impersonation Related Knowledge Base Articles or Support Webpages: For more information on security updates, please refer to the Security Update Guide.
Applies to: Remote Desktop Client for Windows Desktop Maximum severity: Important Highest impact: Remote code execution Related knowledge base or support webpage: For more information on security updates, please see the Security Update Guide Please refer to
Data source: January 2022 security updates (monthly) | Microsoft Security Response Center
Please check Microsoft's official website for details of the update.
The January 2022 Patch Month includes fixes for 6 zero-day vulnerabilities.
Microsoft categorizes vulnerabilities that are publicly disclosed or actively exploited as zero-days without an official fix.Fortunately this month there were no exploitable zero-day vulnerabilities. However, the possibility of being used as information is released in the future will increase, so everyone should apply the update as soon as possible.
*Both the Curl and Libarchive vulnerabilities had already been fixed by their respective maintenance, but until today no fixes were added to Windows.
Microsoft January 2022 Patch Tuesday fixes 6 zero-days, 97 flawsToday is Microsoft's January 2022 Patch Tuesday, and with it comes fixes for six zero-day vulnerabilities and a total of 97 flaws.www.bleepingcomputer.comThe security update information for January 2022 published by major manufacturers other than Microsoft is as follows. Users using Android, iPhone, etc. should also apply the update without forgetting.
Sponsor linkJanuary 2022 "Monthly Patch/Windows Update" points and other notes Summarize your points.
Windows 11: KB5009566 Addresses a known issue affecting Japanese input method editors (IMEs). When you enter text using a Japanese IME, the text may not display correctly or the text cursor may move unexpectedly in apps that use multibyte character sets (MBCS). This issue affects Microsoft Japanese IME and third-party Japanese IMEs. Windows 10: KB5009543 Addresses a known issue affecting Japanese Input Method Editors (IMEs). When you enter text using a Japanese IME, the text may not display correctly or the text cursor may move unexpectedly in apps that use multibyte character sets (MBCS). This issue affects Microsoft Japanese IME and third-party Japanese IMEs.■ Among the vulnerabilities fixed in this month's security update, CVE-2022-21919 (Windows), CVE-2022-21874 (Windows), CVE-2022-21839 (Windows), CVE-2022-21836 (Windows), CVE-2021-36976(Librachive), CVE-2021-22947(Curl) confirms that the vulnerability information was publicly disclosed prior to the release of the security update. Please note that exploitation of these vulnerabilities has not been confirmed at the time of release of the security update.
■ CVE-2021-36976(Librachive) and CVE-2021-22947(Curl) are vulnerabilities in open source software. Because Microsoft Windows utilizes this open source software, we also post information on the Microsoft Security Updates site. The fixes for these vulnerabilities are included in security updates for Windows.
■ Among the vulnerabilities fixed in this month's security update, CVE-2022-21907 (HTTP protocol stack remote code execution vulnerability) and CVE-2022-21849 (Windows IKE Extension code Execution Vulnerability) has a high CVSS Score Base score of 9.8 and is a vulnerability that can be exploited without authentication or user interaction. Please refer to the "Frequently Asked Questions" on each CVE page for information on which products are vulnerable to these vulnerabilities and the conditions under which they can be exploited. Vulnerability information will not be disclosed to the general public and vulnerabilities will not be exploited before the security update program is released. is recommended.
Here are some other known caveats.
First of all, support for "Windows 10 version 2004" ended on December 14th. Users currently using version 2004 should upgrade as soon as possible.
Support for "Windows 7" ended on January 14, 2020, and support for "Office 2010" and "Office 2016 for Mac" ended on October 13, 2020. Please be careful if you are still using it.
Currently, “Office 2021” is on sale. If you want the one-time purchase version, please consider it.
Microsoft Office 2021 (permanent version / one-time purchase) is now on sale! Explain how to purchase and the difference between each edition! If you want to buy cheaply, Amazon's online code version is recommended! On October 5, 2021, Microsoft launched the one-time/permanent version of 'Office 2021'. Announced that support for "Office Personal 2021", "Office Professional 2021", "Office Home...enjoypclife.net2021.10.07" Internet Explorer (IE)" will end on June 16, 2022 (Japan time) as usual. It has been. If you are currently using IE as your main browser, let's switch to "Microsoft Edge" as soon as possible. Also, if you are using it in a company, it is recommended to use "IE mode" of "Microsoft Edge". It seems that "IE mode" will be supported until 2029, so please do migration work and verification work as soon as possible. In the case of Windows 10 Enterprise, the support period is from 2025 to 2029.
Please refer to @IT's page for details.
Finally to the end. Internet Explorer (IE) End of Support Schedule Internet Explorer (IE) has long been a standard feature of Windows OS. Its "life" depends on when various support ends. Explains the "end" that has come into view while illustrating the end of support for IE for each Windows OS in an easy-to-understand manner. atmarkit.itmedia.co.jpThe security update program for Windows released in the July 2021 regular release includes the update program "KB4577586" for removing Adobe Flash Player. Please note that applying this update will remove Adobe Flash Player from your Windows device.
From January 12, 2021, Adobe has already started to block the execution of Flash content by "Adobe Flash Player". For more information, please refer to Japan Windows Blog and Japan Developer Support Internet Team Blog.
Next is a warning about malware and ransomware.
In recent years, ransomware attacks targeting governments, companies, and public institutions have become more active. The other day, a hospital was infected with ransomware, and there was serious damage that electronic medical records could not be viewed. Also, Emotet's activities are becoming active again.
Be careful not to open suspicious emails, disable automatic execution of Word macros, and keep your software up-to-date. Also, companies should take security measures based on the premise of zero trust (trust nothing).
Regarding emails that aim to infect viruses called "Emotet": IPA Independent Administrative Agency Information-technology Promotion Agency Dissemination of information security-related information to users, administrators, and engineers, information collection and research as a prerequisite Implementation of analysis, research and development, technology evaluation, etc. www.ipa.go.jp Large-scale ransomware attack targeting IT management service "Kaseya" indirectly affects many companies Ransom to Acer and JBS, a major meat processing company The cyber attack group "REvil", which is known for conducting software attacks, conducted a supply chain attack targeting the IT management service "Kaseya". Kaseya's cooperative response with security companies seems to have stopped the chain of damage, but the impact of the SaaS server outage...gigazine.nethttps://www.akamai.com/jp/ja /solutions/security/zero-trust-security-model.jspwww.akamai.comThe safest way to back up data is to regularly back up data to an external HDD, etc., and then unplug the LAN cable or turn off the power. It is to keep it. (Offline data storage) Securely protect important data (work data, family photos, home videos, etc.).
[Amazon.co.jp Limited] Buffalo External Hard Disk 4TB TV Recording/PC/PS4/4K Compatible Buffalo nasne™ Compatible Quiet & Compact Made in Japan Failure Prediction Watch Signal HD-AD4U3 Buffalo See Amazon product reviews and reviews on Amazon Importance of offline data storage from the perspective of Rakuten ransomware countermeasures | Fujifilm [Japan] Replicate data to offline storage that is not physically connected to the computer where the ransomware malicious program is executed, and save it as backup data is one of the measures. If only important data files are stored on tape media, etc., the effectiveness of ransomware countermeasures will be enhanced. www.fujifilm.comNext is information about the end of support for Windows 10.
■ Support for the initial version "1507" ended on May 9, 2017 (US time). ■ Support for "Windows 10 November Update (1511)" ended on October 10, 2017. ■Support for Windows 10 version "1607" (Anniversary Update
Reference: Products whose support ends in 2021 | Microsoft
If you are using any of the applicable versions, please update to the latest version as soon as possible.
How to check the Windows 10 version/build number: Click the [Start] button at the bottom left > Settings > System > Detailed information > Scroll down and check in "Windows specifications" [For older versions] Check the Windows 10 version/build number Method: Click the [Start] button at the bottom left > Settings > System > Version information > Scroll down and check "Windows specifications"And on January 14, 2020, extended support for "Windows 7" will finally end. Did. If you are currently using Windows 7, please consider migrating to Windows 10 as soon as possible. The FBI has also warned about the security risks of 'Windows 7'. About 98% of the OSs that were damaged by the ransomware "WannaCry" were Windows 7, so please do not think that it is someone else's problem and deal with it immediately.
Support for Windows 7 ends on January 14th! Please be careful as security risks increase! "Windows 7" is still popular for its lightweight and simple UI, but support has finally ended on January 14, 2020 today. This means that as of January 14, 2020, PCs running Windows 7 will have a technical... It is possible to purchase an update (ESU) (until January 2023/paid). Please consider if early migration to Windows 10 is difficult for companies etc. Windows 7 ESU will be sold on a device-by-device basis, with prices increasing yearly.Next, support for "Office 2010" and "Office 2016 for Mac" ended on October 13, 2020. From now on, technical support, security patch programs, bug fixes, etc. will not be provided at all, and it is very dangerous to continue using it. Switch to "Office 2021" or subscription-type "Office 365" as soon as possible. "Office 365 Personal" can be installed on any number of PCs (Windows, Mac), tablets (iPad, Android, Windows), and smartphones (5 devices can be used simultaneously), so depending on the environment, it may be unexpectedly profitable. I've seen a lot of unexpectedly careless cases even in companies. Please do not think that "it will work even if the support ends for the time being", and deal with it as soon as possible.
Microsoft Office 2021 (permanent version / one-time purchase) is now on sale! Explain how to purchase and the difference between each edition! If you want to buy cheaply, Amazon's online code version is recommended! On October 5, 2021, Microsoft launched the one-time/permanent version of 'Office 2021'. As usual, "Office Personal 2021", "Office Professional 2021", "Office Home ...enjoypclife.net2021.10.07*When support ends, we will stop providing security updates to keep your PC always up-to-date. , leaving your PC at significant risk.
Windows 7 End of Support Information - Find Microsoft Windows 7 end of support dates and get help from Microsoft on how to proceed with your transition. Discover the benefits of using Windows 10. www.microsoft.comThe following article summarizes the recommended specifications for personal Windows 10 PC replacement. Please refer to it if you like. And Windows 11 was also released on October 5, 2021. If possible, if you buy a PC with Windows 11, I think you can use your PC with peace of mind for a long time.
How to choose when purchasing a PC: Recommended Windows 10 PC configuration specs, manufacturers, and inches Summary As of 2021, the recommended specs, manufacturers, and inches for the “Windows 10 PC” that I personally use as a guide when purchasing a PC Summarize the number (display size) etc. Purchase from "Windows 7", "Windows 8", etc...enjoypclife.net2019.02.04The other day, I purchased "Surface Pro 8" with Windows 11 installed. I am very satisfied with the results.
Surface Pro 8 actual machine review: Increased satisfaction with a finish that feels like when you bought an Apple product! This is great! I'm a manager who bought a new Windows PC for myself after a long time. The home-made desktop PC equipped with Ryzen 7 1700 does not support Windows 11, and the Xiaomi laptop used for sub-purposes also does not support upgrades. So take the plunge...enjoypclife.net2021.11.07Surface Pro 8 Price & Specs & Recommended Models & Purchase Summary! Introducing how to buy cheaply! The "Surface Pro 8" has finally been released, and the administrator has also obtained it immediately and is currently doing initial settings. I will summarize my impressions etc. at the moment, but at the moment it is easier to use than I thought, and the operation is brisk, so I am satisfied. The display is also high-definition...enjoypclife.net2021.11.03 Microsoft Surface Pro 8 / Office H&B 2021 installed / 13 inches / 11th generation Core-i5 /8GB/256GB / Graphite 8PQ-00026Microsoft Amazon product reviews and reviews See Amazon RakutenThe “Surface Laptop 3 15 inch” model that I purchased before was also quite a wonderful finish. If you are interested, please refer to the reviews. Currently "Surface Laptop 4" is on sale. It seems to have a good reputation, such as improving battery life.
Surface Laptop 3 15 inch review! Thin, light and fast! Cospa is good and personally satisfied! This is recommended! I was considering purchasing a laptop computer with Windows 10 since last year, but I gave up because the "Surface Laptop 2" released last year does not have a USB-C port. Meanwhile, on October 23, Microsoft announced "Surface...enjoypclife.net2019.11.09 Microsoft Surface Laptop 4 13.5 inch / Office H&B 2019 installed / AMD Ryzen 5 / 8GB / 256GB / Platinum 5PB-00020 Microsoft Amazon product review・Read reviews Amazon Rakuten Microsoft Surface Laptop 4 15 inch / Office H&B 2019 installed / AMD Ryzen 7 / 8GB / 256GB / Platinum 5UI-00020 Microsoft Amazon product reviews and reviews Amazon RakutenDaily sleep If you mainly use your PC, please be sure to check for updates even today, and restart your PC according to the instructions.
In the case of Windows 10, if a reboot is required, the following instructions will pop up. Let's reboot quickly.
After applying Windows 10 May 2019 Update (1903), such an update notification icon will be displayed.
Proceed to [Start button > Power], and if the following [Update and shutdown] [Update and restart] instructions are displayed, promptly follow the instructions and restart. prize.
Sponsor linkIf you start your computer for the first time in a while, there may be multiple updates by "Windows Update", and there may still be some left even after updating once. If you are concerned about it, manually clicking "Check for updates" may additionally deliver the latest programs, but in that case you will be considered an "advanced user" and in some cases unstable programs will be delivered. There is also a possibility.
Please check manually only if you are interested.
■ Windows 10: Start button > Settings > Update & Security > Windows Update > Check for updates ■ Windows 11: Start button > Settings > Windows Update > Check for updatesPress "Check for updates" and If "Your device is up to date." is displayed, your computer is currently up to date.
In addition, updates for the new Microsoft Edge, Google Chrome, Firefox, Adobe, Java, etc. are also provided from time to time. Be sure to update these as well. Serious browser-related vulnerabilities are also frequently discovered. Please be careful.
Personally, I recommend using "MyJVN Version Checker" to check for these updates. You can easily check the update status. It's a good idea to check it once a month. (Currently not compatible with the new Microsoft Edge)
When you start it, it will be checked like this. It is strongly recommended to perform the confirmation work on the set after completing the update work with Windows Update. *If an error occurs in "MyJVN Version Checker", please update to the latest version and try again.
Finally, when all the update work is completed, it is safe to inspect all files in the PC with "Microsoft Defender" just in case. It can also be used in combination with commercially available antivirus software. It might be a good idea to make it a habit once a month. * In rare cases, there is a possibility that false detection may occur in "Microsoft Defender". Please use as necessary.
Click the [Start] button at the bottom left and click [Windows Security].
Click [Virus & threat protection] in the left menu or click the icon.
The [Virus & threat protection] screen opens. If you are using other commercially available apps, the following screen will appear, so click [∨] under [Windows Defender Antivirus Options].
Turn on [Periodical scan: ON] displayed at the bottom. Click [Yes] when User Account Control appears.
For the time being, if you want to quickly scan your PC, use [① Quick Scan]. If you want to scan in more detail, click [② Scan options].
[Scan Options] opens the following screen. Here, [Full Scan] takes time, but it is recommended to do it regularly. In addition, [Windows Defender Offline Scan] can restart the PC and perform a special scan. If you have the time, it's a good idea to go to each.
If you want to actually scan, select the desired scan and click [Scan Now] at the bottom.
Wait for the scan to finish.
Let's take this opportunity to perform various updates and virus checks as part of monthly computer maintenance.
Also, from "Windows 10 May 2020 Update", "Rating-based protection" has been newly added to "Windows Security". If you enable this, you can block "undesired apps (PUA)", so if you are interested, please try it.
For users of Windows 10 May 2020 Update or later, enable "Reputation-based protection" in "Windows Security" and block "undesired apps (PUA)"! The free PC cleaning software "CCleaner" that I personally have been using for a long time on Windows 10, but from the other day, on some PCs, Microsoft's default antivirus function "Microsoft Defender" changed to "PUA (Potent...enjoypclife .net2020.08.03