I purchased an HP Pavilion for my guest room about a year ago. It was basically just plug and play after downloading a couple of updates. Today, Windows attempted an update and said there was insufficient disk space. When I checked "This PC" I noticed that drive "C" is almost full. Drive "D" however is empty. I went to disk management and it says that "C" is only 119 GB and has used 118GB. "D" on the other hand, is 931GB and used 9.87GB. On my office computer is "C" has plenty of space while "D" is low on space.


I have no idea why this is happening as I though "D" was for System Files. Is there a way to re-allocate the space from one drive to another?