Hi,
Thank you for writing to Microsoft Community Forums.
I understand that you are facing issues installing important updates on your PC.
Meanwhile, you may want to follow the troubleshooting steps mentioned below:
Method 1:
Download and install the most recent Servicing Stack Update (SSU) by choosing the operating that you are using on the PC and try installing Windows updates.
Method 2: Fix Windows file corruption
I suggest you to run the System File Checker Scan in Windows 10 **** and check if that resolves the issue.
Method 3: Performing an in-place upgrade.
By performing an in-place upgrade, you will clean up the system which may help resolve some troubles with the system. To perform an in place upgrade on the computer, refer the steps mentioned in the article How to perform an In-place Upgrade with Windows 10 Step-by-Step Guide by PaulSey…
Note: I suggest you backup important files and data before performing a repair install of Windows.
Hope it helps.