Possibly, you can have her try hitting the
F8 key on boot. One possibility is try booting to the "Last known good configuration". Otherwise, safe mode is an option there too.
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Also do the following to stop the reboot on error, in order to see what the error is (if you are able to get fully booted):
Click Start, Settings, Control Panel, System, Advanced
In the Startup and Recovery section, click on the "Settings" button
to open the Startup and Recovery window.
In the System Failure section, uncheck "Automatically restart",
Click "Apply", "OK"
After that change the computer will no longer restart when a system
failure occurs. Instead it will probably throw up a "Blue Screen Of
Death" with a STOP error message and then halt completely, requiring
a manual power off and restart (or reset if it has a hardware reset
switch).
But the contents of the STOP error message will give a specific clue
as to the underlying cause of the problem.
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If the above doesn't work:
http://support.microsoft.com/kb/174630
Also this, for troubleshooting:
http://www.microsoft.com/technet/prodtechn…gs/pgsappb.mspx
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