Sasser after Formatting ???

When you reformatted did you update windows to the latest security patches? Sasser, blaster, etc are so heavily found in the wild and are constantly scanning, that even waiting 5 minutes after reformatting can cause you to become reinfected immediately.

The firs tthing you should after reformatting a computer is to download the latest critical updates, unplug your cable modem or whatever you use while they are installing, and then do the process all over again until you are fully updated.

As for your problem, when you get that message that you are rebooting, double click on your time in the bottom right corner and change your clock back a year to 2003. This will give you enough time to do the updates.

Some information in case you do not have it.

http://www.microsoft.com/security/incident/sasser.mspx

http://forums.us.dell.com/supportforums/board/message?board.id=si_virus&message.id=10535

Assuming WindowsXP... First thing your should do even before going online and getting those MS updates is to TURN ON THE FIREWALL.

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@ddeerrff wrote:
Assuming WindowsXP... First thing your should do even before going online and getting those MS updates is to TURN ON THE FIREWALL.

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Excellent point. If you are using xp, you can read the following tutorial to learn how to enable it.

Configuring Windows XP Internet Connection Firewall