Thank you for posting your question on Microsoft Community.
I would like to know some information about the issue so that we could help you better.
What is the KB number of the update which are trying to install?
I appreciate you for providing details about the issue.
This issue may occur due to corrupt Windows update files or components.
I would suggest you to try following methods and check if it helps.
Method 1: Run Windows update troubleshooter and check the issue. Please follow these steps:
a. Press Windows + C keys together and click search.
b. Type troubleshooting in the search box and click troubleshooting
in the search results.
c. Click "View all" and then click "Windows Update".
d. Click "Next" and follow on-screen instructions.
Note: Serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.
For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: https://support.microsoft.com/en-us/kb/322756
I hope this information helps.
Please do let us know if you need any further assistance.
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