re: Is "Driver Update" legit or necessary?

You gave no info about the hardware, but I suspect it is a desktop.

A laptop runs off a battery and would not have external power problems.

Your house wiring may have the polarity reversed. Or the power company may have a lot of fluctuations. You can buy an AC polarity tester pretty cheap at Home Depot. Test your wiring first.

If your wiring is hooked up properly, buy a UPS (Uninterruptable Power Supply). Plug your computer into the battery backup outlet, not the surge only outlet.

The UPS will output stable power to the computer since it converts AC power to DC and goes thru a battery and is then converted back to AC.

Again, test your wiring first. I don't know what bad wiring will do to a UPS since it has a big battery inside of it. You don't want that thing overheating and blowing up!

quote:

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"Windows didn't properly shut down"

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might be due to low voltage.