troubleshooting Question Excel Add-in not installing Certificate not trusted

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Murray BrownFlag for United Kingdom of Great Britain and Northern Ireland asked on
Microsoft ExcelVisual Basic.NET
5 Comments3 Solutions98 ViewsLast Modified:

I installed an Excel Add-in that I built in several times on the same machine. The installation suddenly didn't work.
It just froze. So I uninstalled a few Windows Updates and then it installed just fine.

I then tried to install a later version today and it wouldn't. The error message said that the certificate is not trusted.
How could this be? This is very frustrating. How do I get around this?

I tried running as administrator to no avail. Is Windows Updates part of the problem?
Excel amusant

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