My PC seems to have lost the CD in 'my computer'. When i turn my PC on the brightness is at its lowest and I have to adjust each time i now logon.
In Device Manger Microsoft System Managemnet Bios has an exclamation mark next to it.
I have had a look on microsofts website and they recommend removing the upper file in the regisitry. When i open that file the upper and lower files arn't there.
Any info would be helpful. 
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