The "computer won't start" troubleshooting guides below apply to all pc devices. in other words, they'll help if your desktop or laptop won't turn on, or even if your tablet won't turn on. we'll call out any important differences along the way.. How to figure out why a computer won't boot. in this article: article summary for a windows computer that doesn’t power up for a computer that freezes upon startup for a windows laptop that doesn’t start up for a mac that doesn’t start up community q&a. we all go through times when our computer or laptop simply refuses to boot.. Here are all the steps you need to get your mac started again. just work through them in order, unless your mac won’t boot after a failed operating system update. in that case, skip straight to step 8. 1. check if the mac has power. first, check that your mac has a power source..
The weird thing is, sometimes starting the computer in safe mode can fix boot problems. it’s not clear to me what processes run in safe mode, but experience has taught me it’s an effective and easy fix. if your computer won’t boot, however, you might have problems entering safe mode. there are two relatively easy ways to get into it.. If the computer won’t power on at all . if your computer won’t power on at all, ensure it’s plugged into a power outlet and that the power connector isn’t loose. if it’s a desktop pc, ensure the power switch on the back of its case—on the power supply—is set to the on position. if it still won’t power on at all, it’s possible. Try to boot into safe mode and then restart from within windows. if that won't work boot to safe mode and try to restore to a point prior to when the updates were installed..
