The Windows partition...is the only partition on a hard drive...that is affected by being full. Windows needs at least 15% of the C: partition to be free space on the partition in order for Windows to run as it should.
If a drive has nothing but the Windows partition using all the hard drive space...then the partition/drive spacing becomes an issue.
Please download MiniToolBox , save it to your desktop and run it.
Checkmark the following checkboxes:
List last 10 Event Viewer log
List Installed Programs
List Users, Partitions and Memory size.
Click Go and paste the content into your next post.
Also...please Publish a Snapshot using Speccy - http://www.bleepingcomputer.com/forums/topic323892.html/page__p__1797792#entry1797792 , taking care to post the link of the snapshot in your next post.
Edited by hamluis, 02 April 2015 - 12:17 PM.