Rant: A stubborn laptop in my shop wouldn't boot past a blinking cursor, and a weird trick finally worked

Had a client's machine from a local school district that just showed a black screen with a blinking underscore after POST. Tried the usual stuff, like checking the boot order and reseating the drive. Out of ideas, I disconnected the CMOS battery for a full 30 seconds while also holding the power button down the whole time. Plugged it back in, and it booted right into Windows like nothing happened. Has anyone else fixed a weird boot issue with that specific combo move, or was I just lucky?

3 comments

3 Comments

bennett.harper2mo ago

Wow, that's wild! My buddy had a desktop that would just hang on a black screen. He did almost the same thing, pulled the CMOS battery and held the power button for like a full minute. He said it felt ridiculous, but it finally posted and loaded up. Seems like that combo can really clear out some stubborn ghosts in the machine.

the_brian2mo ago

Remember the time I spent three hours swapping parts in a dead PC only to find the power strip was off. Sometimes the fix feels so stupid it hurts. Your CMOS battery trick sounds like that, a last ditch move that makes you question your whole career when it works. I've had to pull the plug and hold the power button on more than one stubborn machine, feeling like a total clown the whole time. It shouldn't work, but it does, and you just have to laugh at yourself.

the_brian2mo ago

Seriously, why are we celebrating random button mashing as a real fix? That combo is just forcing a full power drain, which any proper troubleshooting guide tells you to do first. If pulling the battery and holding the button works, it points to a deeper hardware fault that you just temporarily band-aided. The machine will probably fail again soon, and then the customer gets to pay twice. We should be diagnosing the root cause, not relying on voodoo rituals that make us look like we don't know what we're doing.