Yes, but what is causing Anup's real problem

I'm experiencin the same problem as Anup.Well it all started today when i found out about the "iexpress.exe" i tried to xtract a .exe file and the iexpress.exe thingy hung up and stopped responding.I tried to delete the process,but on seeing that there was no use tryin to delete the process i pressed the power button and got stuck while it was shutting down( it was displayin "windows is shutting down" for about 5 mins) and i had to manually cut the power supply.And after that when i booted up chkdsk started up and started doing this 5 stage scan thingy everytime i booted up since then