Can i "downgrade" symantec antivirus?

iv re installed my system + sym antvirus(corporate), but when it updates the virus database the software is upgraded too. my crappy old computer hasnt got the cpu power(533mhz) and the process rtvscan.exe takes 99% of it! i can end the process but i might as well not have it on if i do that... was workin fine before my latest reinstall. and i cant say what elements i want and dont want, it does it all automatically. grrrr

Can i "downgrade" symantec antivirus?antispyware

Because of differences in the way the older and the current version of symantec work, the current virus definition files will not work with the older versions of the program. That is why it automatically updates your version when it updates the definitions. If you were to reinstall an older version it would get updated on the next definition update.

If your PC can not handle the new version, I would recommend removing the Symantec and replacing with one of the free virus scanners and s couple of free spyware programs. They are not the resource hogs that Symantec is. It is a good program, but it requires an above average PC to run well.

For an antivirus, download and run AVG virus scanner from http://free.grisoft.com/softw/70free/set... for free. I have used it for about three years both at home and professionally with no issues.

As the free anti-virus programs do not include a spyware scanners, download both Ad-aware ( http://www.lavasoftusa.com ) and Skybot (http://www.safer-networking.org/) and run them about once a week. Run both as one may caught something the other missing.