Corruption of Finder?

[mikethebook]

After uninstalling Skype yesterday to see if re-installing would help a glitch I've been having, I've found the Finder is not working properly. At first I couldn't click to open any Desktop files though they would open if I went through the appropriate app. Force Quit seemed to help that. But now the Finder menu doesn't work except sporadically and most of the time I can't open the Finder folder from the Dock. Although I can open a new Finder window from the menu strangely. I've tried deleting the preference file in ~/Library/Preferences but that didn't seem to do anything.

Add to that I can't reinstall Skype. The dmg file won't open. Anyone understand what is going on? I run Sierra on a 2009 2.26GHz Mac Mini.

 

[Fishrrman]

You probably already tried this, but...

... Have you tried shutting down the Mac (power all the way off), and then... rebooting?

 

[mikethebook]

Yes, numerous times. Right now it seems okay but how long that will last i don't know.

 

[mikethebook]

The problem has returned. I've reinstalled Sierra via the unsupported Mac fix but the situation has not improved. The hard drive appears to be healthy. That's really weird.