Hi,
Thanks for your post in Microsoft Community.
I understand that you are encountering a Windows Security Platform Update error with error code 0x80070643.
You can try running the command prompt as administrator and execute the following command:
(The command prompt can be found by searching for cmd in the search bar.)
sfc /scannow Dism /Online /Cleanup-Image /ScanHealth Dism /Online /Cleanup-Image /CheckHealth DISM /Online /Cleanup-image /RestoreHealthAfter the command is executed, restart the computer, and then execute the following command again:
sfc /scannowAfter detecting no problems with the system, try installing the Windows Security Platform Update again.
Please feel free to let me know how it goes.
Kirk | Microsoft Community Support Specialist
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After going thru the steps above I am still unable to install KB5007651