Re: BIOS clock slow- Not due to CMOS battery
You might want to try and do a repair on the OS by following the info HERE.
If that does not work then the other two options are Factory restore or Clean reinstall. Note that both of these will completly wipe out your current system and unless you back up your data it will be lost. You will also have to reload all your programs that did not come preinstalled if using the Factory restore option or all the programs if doing the clean install.
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