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After a shutdown my PC would turn on, but would not boot (nothing appeared on the monitor). I cleared the CMOS on my motherboard via the jumper, and then was able to enter the BIOS setup menu and restore the default settings, and then boot into Windows successfully.

My question is why this was necessary and if it signals an underlying problem I should address?

Thanks

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Were you overclocking anything? – Amazed Jan 16 at 20:10
No, I was/am running everything normally. – Michael Jan 16 at 20:33
I have seen cmos batteries cause this in rare circumstances, replace the battery with a high quality one. – Moab Jan 16 at 21:20
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