I have a loud whirring noise coming from my HP Tower. This happened about a year ago also. At that time, I found a posting that walked me through shutting off a program in Windows 7 and it worked!! I recently did a windows update and it must have turned that program back on because the noise is back. Of course, I didn't save the article from a year ago and can't find it now. Anyone know what program I need to shut off????