OK, you bought a nice new computer not that long ago & your free space keeps disappearing? Frustrated? Can't figure out why? Every time you look another Gb or 2's vanished?
May I suggest you download TreeSizeFree? [I'm not associated w/them; I'm just a VERY satisfied customer.] It takes very little space, but it is very powerful. As soon as it's downloaded, choose 'Run as Administrator'
& you'll have a complete pic of your entire HDD - including hidden folders & files...AND you can deal with them with a mere click of the cursor. :)
My notebook has a 580GB drive that's rapidly run out of free space. I cleared all photos & videos (25Gb worth) off to a 1.2Tb drive just to run Office. In frustration I googled 'hard drive free space disappearing'. After viewing several tech sites & seeing what the majority opinion recommended for a not-too-geeky user I decided I had nothing to lose at this point & ran TreeSizeFree. To my amazement 70%...Seventy percent of my drive was being eaten up by ONE program, It wasn't Windows, it wasn't my Libraries. Nope, it was Norton!!! I had hundreds of folders going back FOUR years!. These definitions, updates, whatever were totally useless (I've changed to a different version over the years) so I figured the only thing to do was get rid of all of them. One folder alone contained 2962 files & ate up 1.9Gb of space!
Presto -chango! I now have over 300Gb back! Yippee!
FYI: no matter what an ad claims NEVER, EVER use a registry cleaner! That's a great way to really foul up your software. Several tech sites are honest and say 'cleaning' a registry is not necessary & will NOT increase your speed.