I'm new to Linux. My Ubuntu 13 is now meeting problem such the CPU rate is about 100% ever time and the System Drive Disk Usage is full. I think the virus is attacking my computer. Are there any ways i can do to restore it to the previous point or to make it new?
While I cannot exclude that your computer has caught some malware, I doubt very much that your problems are caused by a virus. Or do you have other evidence, probably suspicious files? (In fact, most malware tries to act inconspicuously, and not alarming you with much activity.)
You should first try to find out which process is running amok on your system, e.g. by running
are candidates for growing log files and could give you some hints. (
Next step would be to find out what caused that process to misbehave. But that depends on the process. Only if that does not work I would think about reinstalling.