Hi pallabchutia
please try each of these and check for updates after each
- Run the update troubleshooter
settings -> Update & security -> Troubleshoot
on the left, click windows update then click the run the troubleshooter button.
- click start, type powershell
right click on powershell and select run as administrator
type (or paste) the following and press enter after each one
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
- follow the steps given in the "fix windows update issues, walk through"
https://support.microsoft.com/en-us/help/10164/...
- perform a repair upgrade using windows 10 ISO
Andre Da Costa has an illustrated guide -https://answers.microsoft.com/en-us/windows/for...
please let us know how you get on.