Let’s fix things first!
In the tutorial I use Registry Editor, and therefore I decide to make one tutorial with screenshots.
Right-click Start and click Run; or press Windows key + R.
Type in Regedit and press Enter.
Follow the following register key, or copy / paste it in the address bar as in the screenshot.
right click on PostSPUgrade and click on Delete.
Confirm the deletion of the registry key PostSPUgrade.
Go to Start again and search for PowerShell this time.
Open PowerShell as Administrator.
Type in or copy / paste the below cmdlet.
It should now work again!
The complete error message
The complete error message for if someone searches on a different part.
Operation could not be completed (error 0x000007d1).
The specified driver is invalid.”
This is from Microsoft Answers.
This post is from answers.microsoft.com.
I have expanded the existing tutorial with screenshots.
If you have questions regarding this topic, feel free to leave a comment.