Do you have problem that you have not much data in your C:/ or windows drive but your C:/ drive or windows drive is full with saying memory full in windows 7?
This is cause windows do not delete anything itself from temp directory and users have to make their temp directory empty themselves to make their C:/ drive only using space according to installations. When we download any image or program and except to save that image video or programe we click open, run or such buttons on browser then browser download it in temp directory of windows and do not delete after use.
Follow following steps
Remember C:// here is directory in which your windows is.
Go to C:// directory
Go to users in it
Select main user and open his/her directory
Do you see AppData directory there? open it. inside this directory There is directory Local go into it then go into temp directory and delete everything without any tension cause this all are useless files or data for you.
If you do not see Local directory or AppData Directory then inside C:// users/ select your desired user right click on that use go to properties select hide, and apply dont press ok to it when hide function have been applied completely in same dailogue unselect hide button and now select apply to all sub directories then you can see Temp directory
Root would be something like this C:UsersateeqAppDataLocalTemp making this directory empty you can make a lot of space in your computerEmpty.
If you have any question please post below.