I originally posted this on stack overflow and realised that it was OT for there. I hope it is not an OT here as well.
My problem first started when I was using an Open Source C/C++ Library called OpenCV. Here is my original problem description http://answers.opencv.org/question/3996/cannot-do-anything-with-opencv-anymore-on-windows/
However, before sleeping last night I was doing some digging and realised that I cannot even search/install windows updates because it causes the same damage. My machine just slowly dies and become unresponsive. My Googling suggests that Windows 7 64-bt SP1 installation caused this trouble before and a hotfix from MS will do the job for me. However, I downloaded the hotfix from Microsoft Site and it is complaining that a "Disk" is missing which is a part of the fix???? Also, my machine is Lenovo Ideapad V470 and I went to Lenovo Support Site to find this hotfix. However, installing that patch didn't solve my problem either.
I know that under these circumstances, the obvious answer is, "System Restore", but I deem it unnecessary (at least not yet) to just do it without consulting experts on this site. I have raised an issue on MS Support Site, but just like their product they are unresponsive. I don't know what to do now except wait for you guys to give me a good answer. Stackoverflow , before transferring me to you, said that it could be the hardware drivers as Windows' driver quality is below standard all the time!!! Any clues?