I have noticed strange behavior of apps launch in Windows 8.1 Preview: When I turn on my computer and sign in to Windows I can run any apps without problems, but after a certain time - usually about 10 minutes - I can not run any more applications. It happens so - when I run the application - it does not run, but I can find it in the Task Manager and it displays as "Suspended" in the status. The apps that I ran isn't Metro-app, it's just usual app sucj as Firefox, Inkscape, DoubleCommander etc. Also this behavior occurs when I just start my computer, but don't sign in. After a certain time when I sign in then I can't run any app - all of it running as "Suspended". Well, it's became unusable Windows 8.1 for me. BTW, all updates from Microsoft are applied. How to get rid of this app launch behavior?