Upgraded from windows 8 to windows 10 a while ago, want to delete some misc "windows" files

[CobaltImpurity]

Here's the 411, my friend upgraded from windows 8 to10 on his machine around the time that whole promotion was going on. Lately he's been having some hardware problems unrelated to his OS and hes brought his drives over to me to take a peak at them and see what I can do to fix his issues, but again his OS is unrelated to his issues.

I've been looking through his OS drive (which is only a 128GB SSD) and he seems to have more windows related folders than he should have and I want to get rid of what I can on this drive so he has more space. I'm assuming he doesn't need a lot of this crap since he's never going back to 8 or 7 (and yeah i think there might be some win7 files on here don't ask me why) but I'll ask him before I delete anything, but he should be alright with it.

The problem for me is I don't know that much about windows files and all that, and don't know what folders contain what his computer ACTUALLY needs for his current OS, and which folders are literally useless or doesn't need etc. Additionally the drive pretty much has nothing on it but OS related stuff and its been pretty much filled to the brim for a long time, and to my knowledge windows 10 shouldn't take up more than, like, 30 gigs of space.

Here's a few screenshots of the drive:

https://gyazo.com/9df8f68ff3a7839431e4d467216e4f1e
https://gyazo.com/2251d982f67583051eacce0f0333ccc1
https://gyazo.com/c64c94dc9be6f5c8979dc969fb73dd67
https://gyazo.com/341a6678a10901ffa7b7fdc550a775d7

let me know if you want more pictures of certain folder(s) and they're contents.

 

[Snipergod87]

Try running the Windows disk cleanup utility you can have it delete previous Windows installations.

 

[CobaltImpurity]

Try running the Windows disk cleanup utility you can have it delete previous Windows installations.

I've done that twice since I've had his drives and that hasn't helped.

 

[t53186]

I suggest you backup the drive, do a fresh install of windows 10 and install and programs or games on another drive. 128GB is small

 

[CobaltImpurity]

I suggest you backup the drive, do a fresh install of windows 10 and install and programs or games on another drive. 128GB is small

That's pretty much his #1 priority. Just wanted to do something in the mean time to keep his SSD from overflowing. Just a quick question, to an extent don't SSDs need a little bit of space to move things around kind of like ram? So having it almost completely filled is inadvisable?

 

[t53186]

Yes you always want free space on any drives, especially the primary OS. Regular updates to windows and games can eat up space on any type of drive. If you get to 80% it's time to get more space. Just a general rule of thumb varies on drive size.