ok....thats good...however.....it would be a good idea to stop windows updates doing their thing automatically.....for the time being at least.
You will find instruction how to do that HERE
My reasoning here is that until either the actual cause of your pc not opening any apps, or the alleged problem with a windows update is sorted.....it will at least rule out the possibility of this being related to an update from Windows.
In other words, if this problem presents itself again after you have turned off the automatic updating.....then the cause lays elsewhere.
if your pc has been turned off since your last reply here.....it may well update itself again when you turn it back on.....and you wioll then need to do the system restore again followed immediately by turning windows updates either off or to at least stop the 'automatic' install of updates.,
Pay attention to any other differences, glitches, behaviors, etc etc that are not the 'norm' for your pc...
fed up with Windows antics...??
LINUX IS THE ANSWER
I USE LINUX MINT 18.3 EXCLUSIVELY.
Failure is not an option. It comes bundled with your Microsoft product.
Success is not Final, Failure is not Fatal,
It is the Courage to Continue that Counts.
W.C. 4th June 1940