Hello #Parth,
I am Antonio, a Microsoft Community independent advisor, a Windows 10 and Microsoft office user like you. I hope I can help you on your concern.
To be able to assist you properly, I would like to ask few questions from you, please see below:
1. You mentioned you got a cumulative update on 08-20, do you know what's the KB# for that update?
2. Do you have any anti-virus installed?
Please try this method to fix the issue:
1. Try reset Windows update components:
2. Right click on the start button and select Powershell (admin) or Command Prompt (admin)
3. Write the next hit enter after each line.
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
4. Restart and try again.
[Source of information]:
https://answers.microsoft.com/en-us/windows/for...
If the above method does not help, please download manually the cumulative update on the link below. You should know the KB # for that update and search it on the link. After downloading the cumulative update file, please try to manually install it.
https://www.catalog.update.microsoft.com/home.aspx
You're response is highly appreciated. Please let me know if the issue is fixed, if not, we will find another way.
Please let me know if you need further assistance.
Keep safe always.
Sincerely,
Antonio