I have been getting this problem since I upgraded from Windows 8 to 8.1. What happens is after any program crashes, I cannot open it again and I cannot change any of the files that would normally not be changeable if the program is open. I looked in the task manager (CTRL + ALT+ DEL), and there isn't a trace of that program there.
I did eventually find out that this program (GTA IV is what crashed when I tested) was suspended. I had to download Process Explorer, which is a extended task manager, to be able find it. When I found it open, I tried to kill it, but it said 'Error Terminating Process: Access is Denied'. Why is access denied? The only way I can get rid of this program is by restarting my whole computer, which gets very annoying. Is there anything that can fix this? Prevent suspended mode or close a suspended program? Did Microsoft already fix this and I just didn't update?