(KB5039211) refuses to install

his may be caused by corruption in Windows Update. We can attempt to repair Windows update and install the KB manually if required.

To repair Windows Update:

1. Choose Start and type “cmd”. Open Command Prompt as admin.
2. Enter these lines one at a time:

net stop bits
net stop wuauserv
net stop appidsvc
net stop cryptsvc
ren %systemroot%\SoftwareDistribution SoftwareDistribution.old
ren %systemroot%\system32\catroot2 catroot2.old
net start bits
net start wuauserv
net start appidsvc
net start cryptsvc

3. Close the command prompt window and restart.

If that does not resolve your issue then you can install the KB manually.

1. Choose Start and type “winver”. Open winver.
2. Note down your Windows version information.
3. Go to https://www.catalog.update.microsoft.com/Home.aspx and search for the KB.
4. On the next page, locate the version for your machine. You most likely have an x64 installation. Use the winver information if needed to pin down which one you want.
5. Download the KB.
6. Run the installer.
7. Reboot.

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