Has your battery icon disappeared from the SysTray? We had that on the one laptop, and when we would plug the charger in, the screen would go black and then we would get a re-boot. It took another Windows Update to restore things, so try another Windows Update and see if they don't have another set of files to download to your computer... PIA - the laptop was being recognized as a desktop machine and not a laptop.
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"...and bollocks to the naysayer/s" - Jimbuna
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