Microsoft has released KB5006215 for Windows 11 as part of Patch Tuesday for November 2021. This update can be installed on your Windows machine using the offline installers given below, or through Windows Update.
We suggest that you install this update as it fixes 6 zero-day vulnerabilities and some other issues. A zero-day vulnerability is those that have been regularly exploited by the attackers or have been made aware of publicly.
2 of the zero-day vulnerabilities are reportedly being actively exploited by attackers involving Microsoft Excel Security Feature Bypass and Microsoft Exchange Server Remote Code Execution. Below is the complete list of the zero-day vulnerabilities addressed in KB5007215:
Installing this Windows update will secure your device from the active threats on the internet today. Moreover, Microsoft has also given a heads-up to its users regarding the upcoming holiday season. They intimated that there will not be a preview release in December (C release), but rather only the security release (B release).
Installing this update will upgrade your OS build to 22000.318. You can check your OS version and build by typing in winver in Run.
Let us now continue to see what else KB5007215 fixes or improves.
Fixes and Improvements
KB5007215 fixes a problem where a user may experience unexpected behavior from certain applications using GDI+ and the width of the pen object is set to zero on display devices with a high DPI or resolution while rendering some User Interface (UI) elements or drawing in the app.
In another update, the same issue has also been addressed for Windows 10.
Apart from this fix, the Servicing Stack has also been updated that improves the Windows Updates installation quality for the users.
As for the problems with this update, Microsoft is not currently aware of any.
Download and Install KB5007215
Download KB5007215 for Windows 11 64-Bit [196.5 MB]
To install the update, simply run the downloaded MSU file and Windows will automatically install the update. To download any other updates related to any of the above, please check the Microsoft Catalog.
To install this update via Windows Update, you need to be running Windows 11. To check your version of the operating system, type in winver in Run and press Enter.
To install KB5007215, open the Settings app and click Windows Update on the left. You will then see the following written in the right-hand pane:
2021-11 Cumulative Update for Windows 11 for x64-based Systems (KB5007215)
The update will begin downloading and installing automatically. When it does, click Restart Now.
When the computer reboots, you can confirm that the update has been installed successfully through winver.
Rollback/remove Windows 11 Update
If you do not wish to keep the installed preview update for some reason, you can always roll back to the previous build of the OS. However, this can only be performed within the next 10 days after installing the new update.
To roll back after 10 days, you will need to apply this trick.
Cleanup after installing Windows Updates
If you want to save space after installing Windows updates, you can run the following commands one after the other in Command Prompt with administrative privileges:
dism.exe /Online /Cleanup-Image /AnalyzeComponentStore
dism.exe /Online /Cleanup-Image /StartComponentCleanup
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