Why won'y any apps open?

[Troels Vestergaard]

So, i recently installed Windows 7 (from windows 8.1) on my PC. But for some reason, my PC won't open some apps and softwares. Like Spotify and Assassin's Creed. Why is this so, and how do i fix this? It seems like the app is open for one second, and then closes again.

Note: all the apps has been redownloaded and reinstalled multiple times, but it still doesn't help.

 

[Aniket Bhoir]

Do you see any errormessage?
or anything in windows event logs?

if there are none, you may try to take procmon
http://technet.microsoft.com/en-in/sysinternals/bb896645.aspx

and see how the application thread is exiting or once you start the app, if any other app kicks in like anti virus