HI:Currently I have a computer Runing 5 Operation systems:95/98/Me/win2000pro/winXP pro Beside that I have a Boot manager @ start up The point is: Norton AV 2003 Installed on a drive C Partition (set Active) But the rest OF Partitions are Hidden & Norton AV it cannot see them I was wondering IF I should Install an Antivirus Program on Each Operation System cheers to all ..

Aren't all windoze OS's pretty much the same? Just the latest to come out has more eye candy? ;) What's the point of having all of them loaded at once, I'm just curious... I'm not sure but couldn't you unhide the drives in disk manager? (right click My computer-->manage--> Disk manager) Then just scan the drives with Norton. Or load the dat file onto a floppy disk, reboot with the NAV CD in, and scan all your drives from dos? Just a couple idea's for you to play with until you hear from an expert. Don't do anything that's gonna screw ya, just helpin ya check the obvious first. Good luck! ~SS~

... and how on earth will you scan the registry on each OS ?? Each is a different environment, you need 1 AV on each. Unless you only really put 1 at risk by connectng to net with it ??