Hi Harry,
I'm Paul and I'm here to help you with your concern.
Please try the following.
- Run Troubleshooter
Open Settings => System => Troubleshoot => Other troubleshooters => Windows update => Run.
- Use Command Prompt commands.
=> Open Command prompt as Administrator.
=> Type/copy the commands below , enter 1 by 1.
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver
=> Close the Command Prompt and restart your computer then try to update again.
- Use System File Checker to check and fix corrupted system files which may be the cause of the issue. Please refer to the link.
https://support.microsoft.com/en-us/help/402652...
After that try to update again.
I hope this helps. Feel free to ask back any questions and keep me posted.