Your personal data is likely to be growing in size while Windows 7 is not, Filling up your C: drive. This slowdown Windows performance. This video tutorial is on How to Move the My Documents to a different drive other than your C: drive in case you are running out of storage space.
1. Go to the drive where you want to store “My Documents” in my case I would be using my Drive D:
2. Click Start, click on your user name, right click “My Documents“, then click Properties.
3. Go to Location tab, then Click “Move” Browse for the location of where you would like to move the “My Documents” Folderthen click “Apply” and yes to confirm.