Even with ZoneAlarm Antivirus updated last week somehow I must have got a virus or worm. After an update from Microsoft and restart, I got an error message for winlogon.exe telling that an intruction at "0x7c883f9c" cannot be written. After checking the HD I saw that drive C, with 38 gb of space, was completely full. I erased temp files and got 12 mb of free space but after less than 1 minute drive C was full again. I moved to drive D my outlook folder, Internet Temp files folder and virtual memory. This gave much more free space on drive C, but after a short time, drive C was full again. I cannot more update ZonaAlarm antivirus because it tells me that drive C is full. Any idea what it may be?

Operating System:Windows XP Home Edition
Product Name:ZoneAlarm Antivirus