So I did. :o

You missed quite a helpful step in the above instructions, and that's how to cancel the 60-second timer if it starts:

1. Click Start.
2. Click Run...
3. Type shutdown -a

Turn off System Restore

This will prevent your computer from saving a restore point with the worm still activated.

Note: These instructions assume that you are using the default Windows XP Start Menu and have not changed to the Classic Start menu. To re-enable the default menu, right-click Start, click Properties, click Start menu (not Classic) and then click OK.

1. Click Start.
2. Right-click My Computer, and then click Properties.
3. Click the System Restore tab.
4. Select the Turn off System Restore check box as shown in this illustration:

Run the Blaster Removal Tool

1. Download the removal tool from this address: http://helpdesk.luther.edu/antivirus/virusinfo/Blaster.exe
2. Launch the program and follow the directions.

Reactivate System Restore

1. Click Start.
2. Right-click My Computer, and then click Properties.
3. Click the System Restore tab.
4. Uncheck the Turn off System Restore check box.

Blaster worm

reformat and start again

everythibg seams to be working fine then a little box comes up saying windows will shut down in 60 secs, then the computer just restarts no way of stoping it ither.
Any ideas?