Virus Definitions is damaged when full system scan starts.

When the full system scan is just opened, the scanning is blocked by "one click support", says Virus Definitions is damaged (I forget the error code.), need to run liveupdate.

 

After downloading about 60MB files, the full system scan is successfully started.   But the scanning isn't finished,  because ccSvcHst.exe is crashed by "read memory error" and the scan window is frozen.

 

I try to shut down or restart Windows, but failed. Finally, I shut down the laptop by keeping press "START" button for 4 sec and reboot the laptop.

 

I start the full system scan again and it finishs the task successfully.

 

Is there any other issue not resolved in recent product? Should I reinstall it again.

 

 

Windows XP SP3 - NIS 2010 ver.17.5.0.127