Restarting your computer is required message each time XP boots up to the desktop

Imivey,

How are you doing?

Please see this link, which is for help on your issue (as it is probably an acrobat issue):
http://icttechalerts.blogspot.com/2007/07/startup-message-computer-must-be.html

Also, if that doesn't do it, see the 4th posting down on this one:
https://www.experts-exchange.com/questions/22940752/Computer-must-be-restarted-for-updating-to-continue.html

Hope this helps,
Kevin

Just in case those aren't exactly the fix, try these (Again, same issue, slightly different approaches)

http://forums.techguy.org/windows-nt-2000-xp/716098-restarting-your-computer-required-message.html

http://www.adobeforums.com/webx/.3c056b62

Hope this helps,
Kevin