Installed Build 3114 to my Windows 10, because I wanted to work on two different codes and it was easiest with Notepad++ and Sublime text 3 running side By side.
All was good untill a week later I logged back in Windows 10 only to find start menu, notification center etc not working. Googled and found out it was common problem and did all the usual things that fix that, even used the MS tool to fix start menu, but no help. Nothing just worked.
Installed Classic shell and got the “old” start menu working, notification center didn’t work though.
Then I googled more and saw one user installing sublime text 3 and had the problem after that, so after installing Classic shell I uninstalled Sublime text 3, rebooted and everything was working, Metro style Windows 10 start menu, notification center and all. Now… I didn’t reboot after installing Classic Shell (before uninstalling Sublime text 3), so I can’t confirm this as 100%. The computer is used by my wife now so right now I can’t mess it up again.
This is a weird problem and I can’t really provide any more info than this, but I hope this might help someone else identifying the problem and solution for this.
… just to clarify, Sublime text 3 was working the whole time.