Hi,
I'm Jen. I'm not working for Microsoft but I'd be happy to help you figure this out.
I understand you're unable to install the pending updates due to an error. To troubleshoot, you can start by running the Windows update troubleshooter.
https://support.microsoft.com/en-us/windows/win...
However, if the problem persists you can further troubleshoot the error by following methods 2-5 in the link below.
https://www.thewindowsclub.com/fix-0x80004002-w...
I hope this helps. Feel free to share how it went.
Kind regards.
*****Note: This is a non-Microsoft website that would provide accurate and safe information. Watch out for ads on the site which are frequently classified as a PUP (Potentially Unwanted Products). There is no need to buy paid products to fix your computers as they do more harm than good sometimes.*****