NEED HELP ASAP!

Im using laptop with windows XP. And ive got a problem... My C folder memory started disappearing. Every 15 seconds about 10mb.. And i cant find whats cousin this nor i can find WHERE is that space used.. Scanned with antivirus and no antivirus was found. Turned off system restore, deleted recycle bin, ran CCleaner... And memory keeps disappearing! Please help me :(

but it resets when u reboot?

Everything works fine exept lag and space losing.. When i delete something to make space it disappears again and warns me that i have 0 bites left..

Oh space resets? no. its keeps gone. I cant find where its gone nor it returns after reboot

well. imho u've got 2 choices.
#1 is get urself a better antivirus/firewall software and scan again
#2 u manually downloaded something like a simple script the keeps copy/pasting stuff on ur harddrive

My C disk size is 24 GB. But when i scan with treesize it shows that only 10 GB. Where are other 14 GB gone?..

#2 u manually downloaded something like a simple script the keeps copy/pasting stuff on ur harddrive


How do i find if i have such script and how do i delete it?

And about antivirus.. Im using avast. What antivirus do you suggest?

Close evry Task u dont need on startup. Than check - is he still taking the space? Than close next unserious Tasks... If u know which task google him and look whazzup.