Upgrading to Windows 7....

I'm upgrading to Windows 7 and read somewhere that antivirus software should be off/disabled before the upgrading process and can't remember where i read it.

 

I guess i'm asking if it's ok to not have it disabled and still do the upgrade (i have the upgrade disc btw). or should i disable it before doing the upgrade process?

 

I have Norton Internet Security 2009

 

 

thanx