No matter how much you run Windows Disk Cleanup, there are still large files left on your hard disk. To remove them, simply use this software TreeSize;
http://www.jam-software.de/treesize_free/download.shtml
After you install TreeSize, run it in Administrator mode and click down arrow under “Select Direcotry” button;. Select your system’s drive C:
TreeSize will start scanning your C drive automatically. When done, browse to this tree and notice any unusually large file. When you find it, simply right-click and select “Delete”;
C:\ –> Users –> username –> AppData –> Local –> Temp
Notes 