Question: I installed my Windows 7 in 3-4 months ago and it ran very well until yesterday. My C drive is about 40Gb. The combined total of all the visible folders in the root directory of my C drive is 16Gb (including the Windows folder), but my system tells me that I have only 1.13Gb of free space. I haven’t installed any Programs and Updates. What can I do?

Answer: Run chkdsk /f. If the problem still occurs, you might want to use a utility like TreeSize to see if there are any hidden files taking up space. Although it’s also possible that your HDD could be dying…