Windows Vista Laptop keeps rebooting

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Set your laptop so that it does not automatically reboot on BSOD ....

Set up the computer so that it does not automatically restart on system failure .....

Control Panel > System > Advanced > Startup and Recovery > Settings ....

Under System failure uncheck 'Automatically restart' and under Write debugging information select 'Kernel memory dump' from the dropdown list and OK out.

The computer will now show the BSOD in the event of a System failure giving details of the Stop message and the contents of the memory will be dumped to disk.

Run the dump data through our Dump Data Collection Tool and post the log here (copy/paste).

Unfortunately these logs require expert knowledge to analyze and there are only a few members (who occasionally visit WindowsBBS.com) that have the depth of knowledge necessary. Other members can make observations and suggestions as to how you might proceed toward finding the cause ....