Hard drive filling up for no reason

[Cornface]

So I've been noticing lately that my hard drive fills up for no reason. I suspected this earlier, and I think it was a couple of days ago I had 81.8 out of 465 gigabytes.

I checked again now and saw that I had 74.9 gig free. And I am fairly damn sure I haven't filled up almost 6 gigabytes in a few days. I think I have had this problem longer than I want to admit, but I think it's time to fix this god damn problem, but I need some help because I got no clue what to do.

Also, I guess there's a good chance I might dealing with some virus or something, so I need some tips on some free virus/spyware/trojan/whatever scanners.

EDIT: And oh, I defragmented my computer about a week ago. I think I got like 'bout 120-130 gigabytes free then, but it just filled up for some reason.

 

[UndeadDragon]

I would recommend MalwareBytes for checking on viruses and I would also try using CCleaner.

 

[Slapshot136]

if the above isn't it, any window updates/restore points created recently? windows likes to make a semi-backup of itself before any updates, and those can take up quite a bit of room if you do program installs/uninstalls between them

 

[Cornface]

Sorry for the late reply. I have been having a busy week. I scanned my computer, but the problem still persists. Also, I check restore points and such, and it seems I don't have any restore points at all.

 

[Varine]

How much space do you have allocated to temporary files?

 

[sqrage]

Could be internet caches or virtual RAM, how much RAM do you have?

 

[Cornface]

How much space do you have allocated to temporary files?

I clear temp files from time to time, so it can't be that.

Could be internet caches or virtual RAM, how much RAM do you have?

I have 2k RAM to Vista. I am aware it is a little low, but I haven't just been arsed to get more.

 

[Slapshot136]

have you tried going to "computer" and finding out what takes up ~300 gb? (right click on different folders/groups of folders, then go to properties for the size)

 

[PureOwnage]

Download WinDirStat and tell it to scan your hard drive(s). It will list your folders and which folders take up the most memory.
Also, it will display a graphical picture of your hard drive giving each file type a different cluster and color. Click on the biggest clusters to find out what file type takes up the most space and where it is located.

http://windirstat.info/

If it's a Mac, try to find a similar program.

 

[Varine]

Mac's don't have Vista.

 

[Cornface]

Turns out today I got some nasty viruses on my computer. They are fake windows security programs that scan my computer and finds fake viruses and wants to remove them. After ~3 years without firewalls, anti-virus programs etc, well yeah, I am punished..

Also found k70ccreloc.exe on my computer. And according to http://www.incodesolutions.com/threats4/System32Rootk70ccrelocexe.php the process can create files on my computer. Hrm.

 

[sqrage]

What's the name of the "security program?" They're usually rather easy to remove.

Download, install and update Malwarebytes then run a quick scan. Run a deep scan afterwards, should be resolved.

 

[Cornface]

Yarp, Malwarebytes did the trick for me. I think I managed to remove the "security programs." I hope it was them causing the problem, but you never know. I'll return later if I see my hard drive filling up. Thanks for the help everyone.