Or if you’re not prepared to go to that much trouble, try this. Start Windows Explorer. Right click on the C: drive and select “Properties.” Click the “Disk Cleanup” button and do what it says. That should take off all kinds of temporary and other files that aren’t needed and free up some space.
That’s not likely to do much. Just for giggles, I just checked my desktop, which has never been cleaned and it’s reporting that if I run Disk Cleanup, I can reclaim 295mb of storage. Out of 2 terabytes of storage, that’s not worth the trouble even if it only takes seconds.
Anything from Vista forward, there is little reason to run disk clean or defrag utilities. Those are leftovers from the Windows shell over DOS days. The more modern OS’s do a wonderful job of housecleaning with no user intervention.