Windows 10: Windows 10 can't open programs

I've reinstalled windows twice already, it works about a week and then just stops opening programs. I've tried a bunch of solutions, none have worked for me so far, when I try sfc /scannow it says windows resource protection could not start repair service. I also get an error when trying to create a new user on the pc. Microsoft programs appear to work as does chrome, but that's it. Windows updates keeps failing too.

:)

 

Windows 10 Tweaks

Pressing “Windows+Pause Break” (it’s up there next to scroll lock) opens the “System” Window.

Windows 10: In the new version of Windows, Explorer has a section called Quick Access. This includes your frequent folders and recent files. Explorer defaults to opening this page when you open a new window. If you’d rather open the usual This PC, with links to your drives and library folders, follow these steps:

• Open a new Explorer window.
• Click View in the ribbon.
• Click Options.
• Under General, next to “Open File Explorer to:” choose “This PC.”
• Click OK

credit to Lifehacker.

 

Why did the startup window get cleared?

I didn't missed any step, the list was gone and gone , even after using lot of programs the programs were not listed in that list.

 

Windows 10 installing progs

I decided to take the plunge and upgrade to windows 10 from 7. I used the Media Creation Tool from MS website. It took awhile, but I am finally running Windows 10 (12-14).

I opened the new App & Program feature to remove programs that I no longer needed. Scrolling down the list, I was horrified! Apps that I didn't install somehow magically installed themselves. Two programs stood out: Facebook and Candy Crush Soda Saga. Both programs have those tale-tale icons that they came from Windows Store (which I've never even opened). The install date for both of them were on 12-26.

Is this a common thing for Windows 10? Or is it because I did an upgrade and not a clean install?