Ugh, patching servers. Yet another reason to move to SharePoint Online. I recently started another patching process as the servers were getting out of date and needed to have the environments upgraded. So while doing one server in particular I ran into a snag where the installer wouldn’t even run past the detection point. It simply kicked off and immediately returned the error “An Error Occurred While Running Detection”
I am going to go over the different steps I took to resolve this issue. I am even going to list the ones that should have worked but didn’t in case they will work for you.