Hi, new to the forums, I seem to have a major problem on my hands.
I have recently built my computer (Thursday), and Friday I installed the software after it was up and running (Pro 64bit). This morning I began to install my regular programs (Steam, Zune Media Player, Google Chrome), and everything worked fine. I even installed the game STALKER: SoC and was able to completely max the graphics and play for about 3 hours. Toward the end of that 3 hours, the game crashed, but I didn't really think much of it, since the game is known to be very buggy.
However, not too long after that, things like opening up windows explorer (and especially Task Manager) began taking an extremely long time, I mean almost 5 minutes for a right-click to register. It might be related to UAC (which I turned off, but the problem remains), but it also might be related to Steam (I had a game installing at the time, and it continually froze and would remain unresponsive for upwards of 10 minutes). After I hard restart (it hurt me, too) of the PC and a subsequent re-launch of Steam, two games appeared in my Installation queue. Steam then proceeded to freeze again and remain unresponsive for another insanely long session. The next time I rebooted, I did not start Steam, but my PC still takes a very long time to open anything. Now it is simply very inconsistent.
Sometimes I can open things fine. Other times it as slow as before. Help? I'm new at building, but I have a good history with computers in general, and I've never seen anything this bad before.