Can you please provide some additioan linforamtion on this like;
What is the version of virus scan and DAT ?
How old is the computer and the RAM size ?
The version of viruscan is 13.15 build 13.15.113
Version DAT is 5860.0000
My computer is of the year 2008 (may) intel core2 quad 2.40 Ghz; the RAM size is 2GB
Do you have too many programs running on the startup? If you bought an OEM machine it probably does (ex: DELL, HP, etc machines). Can you take alook what processes are using the most CPU after you login? You can also disable real time scanner reboot your machine and see if you feel any performance difference. It's possible one of the process is doing alot of I/O on startup.
So it was an issue with a hardware component ! Glad that you are ok now and thanks for reporting it back.
Do report back on a new thread if you have any issues.
Thanks & Regards,