Ok, I need some serious help. I just got a virus, (or similar) that fills up my main hdd. I know this because every time I reboot the PC, as soon as I look in My Computer, it shows that I have all 12GB of my space left on my HDD. But, as I leave the computer on, the free space gets lower and lower until it goes down to zero. I have run anti virus and anti malware with no luck. I also ran HiJackThis and analyzed the log with no bad results. I have also tried system restore, but the computer disabled system restore and deleted restore data when it first came down to zero. So I am at a loss. I need to get it fixed real soon, because I have business work I do on the computer. A couple things I don't know: Is it a hidden partition, or is it a temp file? Is it a virus, or is it a legitimate program, (which I doubt). What should I do? Please help me. Please note that every time I restart the computer, the full space of my HDD shows back up in My Computer. Even if I hard reboot it. Thank you for your help.

I might add that the free space of my drive goes down faster when I start up the computer normally. When I am in safe mode, it takes a lot longer for the HDD to fill up.

I am running VundoFix right now, and I have downloaded ComboFix too, but I do not know how to analyze the log. I have scanned my computer multiple times for viruses, trojans, malware, and spyware, but the problem is still not fixed. I also scanned with spybot search and destroy. I even scanned my computer for files larger than 500MB, but it did not come up with any, which is making me think that I have some hidden partition made in my Windows drive. How would I find a hidden partition?

Do you think that this could be a HDD failure? I am not finding any viruses or any hidden partitions. EDIT: I am pretty sure that I have narrowed it down. I am sure that whatever it is is writing thousands of small files less than 1KB each constantly. What I do not know, is how to get rid of what is causing it. Edit: One other thought. Why, if they are really small files, would they be gone as soon as the system is restarted? Even if the system is unplugged they are still gone after I start up, which, I guess, is good in a way. But nothing is cleared upon system shutdown, except for tmp files, right? So would that mean that they are tmp files?

have you tried to disable system restore?? Vista is know to take up alot of space when it comes to that option. Try to disable it and see if it keeps happening. Jim R

It automatically disabled system restore because of low space.