If your drive C disk space is Full, you can try following method to free up diskspace
Method 1
Click Start, then in search bar, type: Disk Cleanup
Let it find and free up diskspace
Method 2
Go to folder C:\Windows\Logs\CBS, which is logs of Windows repair tool
Delete all files inside
Empty your Trash Can and check drive C diskspace again, your should able to free up some disk space.