Hi sagar peruka,
While waiting for the information David requested, I'd also suggest trying a few additional checks.
First, run the Windows Update Troubleshooter from Settings > System > Troubleshoot > Other troubleshooters > Windows Update.
Next, open Command Prompt as Administrator and run:
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow
You can also try resetting the Windows Update components. Open Command Prompt as Administrator and run the following commands one at a time:
net stop bits
net stop wuauserv
ren %systemroot%\softwaredistribution softwaredistribution.bak
ren %systemroot%\system32\catroot2 catroot2.bak
net start bits
net start wuauserv
Restart your PC afterward and check whether the Windows Update and Update History pages load correctly.
Since both the Windows Update and Update History pages are not loading, it may also be worth testing with a new local administrator account:
Settings > Accounts > Other users > Add account > I don't have this person's sign-in information > Add a user without a Microsoft account.
Create the account, change it to Administrator, sign in and check whether the Windows Update pages load normally there. This is only a diagnostic step and won't affect your existing files or settings.
Once you've had a chance to try these suggestions, please let us know the results along with the antivirus, VPN and winver information requested. That should help narrow down the cause of the issue.
If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.