For about two weeks or so the 31gb c drive on my HP Mini has kept on filling up, sometimes within 20mb of space. I have run disk cleanup and defrag and used CCleaner, but they only free up about 200mb of space at a time, and eventually that gets filled up again. Once I freed up 1gb by restarting my computer, but that also filled up again within a few days. I tried scanning for a virus, but my computer is clean. I have emptied temp folders, the recycle bin, and removed all unnecessary files and programs from the drive, but nothing has helped. I have no idea what is filling up the hard drive. I have read that using the Hibernate feature too frequently can cause hard drive problems. I use hibernate almost every day when I am done using the computer for the day. Could this be the issue? If so, how can I fix it? Any assistance is much appreciated.