[Starfire27]

My computer has Windows Vista. My subscriptions to Spy Sweeper and Trend Anti Virus were due to expire (Spy Sweeper first) so I renewed the Spy Sweeper (no anti-virus) first. About a week later, when I tried to renew Trend, I was given two choices - their Anti Virus + Spyware or something new called Internet Security which I understood to be a replacement of the original anti virus program (no spyware). I purchased and downloaded that and after what seemed like a dozen downloads and a dozen restarts, and pasting the serial number from the confirmation email into the appropriate box, my Trend icon indicated that Trend needed my "help to solve a problem", that being that the subscription needed to be activated. When I clicked "Fix it", I was rewarded with the following error message:
"Your Trend Micro AntiVirus serial number cannot support Trend Micro Internet Security. Please install Trend Micro AntiVirus instead. (Error Code:0x90000055)".

So did I buy the wrong thing or is it just incompatible with Vista, like most things are?

I'm pretty sure this means that since I uninstalled AntiVirus as instructed, I am now unprotected against viruses. Assuming that I am, I would like to uninstall Trend and purchase the anti-virus addition that Spysweeper offers. Would this be the wise thing? Most of all, I just want the easiet, least destructive path out of this mess, and the sooner the better so I don't run into a problem with Trend when I try to get a refund from them, and so my unsophisticated computer brain does not explode.

Any help would be so much appreciated. Thank you.

[MJTech]

Did you uninstall the old AV before installing the new one?

[sup2a]

you could always contact Trend Micro yourself because you have payed for it...right? (sorry its late )
i had a few problems with Trend myself.... i chose to uninstall it myself, and got all the good free ones out there Trend i find annoying as anything it just seems to bring your system to a crawl with its consistent scans, updates and whatever else it does