Well, if it has not infection
![Smiley :)](https://forum.avast.com/Smileys/default/smiley.gif)
, but suddenly my hard drive C partition was increased by around 70 GB in less than 30 minutes, what was going on ?
The system process was continuously writing data to disk and 1.5 GB disk space being occupied each minute, was it not a virus ? Or is Windows 7 itself a virus ?
Why are you telling me to remove disinfection tools ?
Thank you very much.