Storage Space Rapidly Decreasing for no reason

Today I noticed my storage space, last I recall being 20GB out of the 464GB, was hovering around 100kb and changing infrequently. I havent downloaded anything since Monday. I deleted 15 gigs worth of games and then ran malwarebytes. It found around 20-30 trojans and 120-130 pups. It deleted them all. I reboot the computer as prompted and see that the 15 gigs l freed up shrunk to 10.7 gigs. I looked around a bit more and found that it may have been system restore points, so I check mine and see that l have it disabled all together. As l typed this my free space decreased to 10.1GB. I looked around more and found out about a "W32/Rotinom Worm", on the net, though I assume malwarebytes would have taken care of it. It struck me, because I remember a few days ago I got a system message saying that "Rll.32 dl" or something like that, stopped working, but I dismissed it at the time thinking it was an emulator I was playing freaking out.

What should I do now?

How are you managing your System Backups? Not restore Points. You may have a pile of back ups being stored. I just delete every other back up that is stored, except for the first one and the most recent 2 or 3, all the others can go. Today I deleted 100+gb of backups'

As far as I know I have no system backups being made, but I'm unsure. The only thing I could find related to it is that it's scheduled for the first of every month and that it can't be completed due to not having a specific drive to save them to.

Goto c drive, sort by size, find the big folder and see what it has in it. Not the windows folder, maybe one with the name of the computer. There are tutorials here for managing restore and backup settings.
Backup User and System Files - Delete Backups[2]=Backup%20Restore

Many more tutorials in the tutorials forum thread

I have no backups on the C drive, it was backed up to a usb I lost some time ago. Though it says the last back up was made on the first of this month. The backup size is marked as unavailable and the rive it was saved to, named (E:) is disconnected. The Manage Space option is grayed out.

Give us a screenshot of your expanded C drive tree sorted by size. While you are at it please update your profile/System Specs following this tutorial, System Specs

Did you mean this?


I've been more than very careless on the internet, and I only run antivirus software every 2 weeks

Yes that is what I meant. NEVER EVER GO ONTO THE INTERNET WITHOUT AN ANTI-VIRUS PROGRAM RUNNING, YOU MIGHT AS WELL BE RUNNING AROUND NAKED IN A JAIL HOUSE AND SCREAMING PLEASE RAPE ME. I strongly recommend you add a hard drive to your machine and get all of your game stuff off of your primary drive. Start there and come back when you get some house keeping done. The size of you restore points is a drop in a bucket compared to your other issues.

I realize that I should, though hard drives are an expense that I myself can't afford for another few months. And I'd rather not toss out the, what I hope is, salvageable one I already have.
Aside from that, is there any other reason storage space steadily dwindles as time goes on?