MikeInPoulsbo

The problem disappeared after a couple of Microsoft updates on 3/3 and 3/4.

I have 3 computers on my home network, two are Windows 10 desktops, one is Windows 7 laptop. I'll call them 10-1, 10-2, and 7. 10-1 can see 10-2 and 7. 7 can see 10-1 and 10-2. 10-2 can see 7 but CANNOT see 10-1. What can cause this problem? All are Ethernet connected to the same router.

Looking back the first occurrence of this problem was on 2/13. A lot of updates occurred on 2/12.

This happened about 3 days ago, maybe after some Windows 10 updates were installed. The main consequence is that I can't run Apps now and my file associations also were screwed up . How do I get my admin configuration back to the way it was? The method described in "http://www.tenforums.com/tutorials/2969-administrator-account-enable-disable-windows-10-a.html" doesn't work.