I Googled "reboot instead of shutdown":
http://www.windowsnetworking.com/articles_...s-Shutdown.htmlhttp://www.aumha.org/win5/a/shtdwnxp.phpYou can turn off automatic restart upon system failure:
My Computer > Properties > Advanced > Startup & Recovery Settings > System Failure, unselect Automatically restart
I'm not sure what the Win XP default is for this setting, but mine was already off. I have not turned it on to see if I can replicate the problem, but I'm using Ad-aware AE v. 8.0.3 rather than the latest 8.0.7.
If your system is set to automatically restart, then the question is, what is causing the system failure? If you have "write an event to the system log" selected, you can check the Event Viewer under Control Panel Admin Tools. I imagine it may be that there has been a problem with Ad-aware not retaining the Last Scan Date - the cause is the Ad-aware service not shutting down properly. This has been identified and the fix should appear in the update due out next month.