Your Windows computer isn't working right and you need to narrow down the problem. Here's how to boot up in Safe Mode and do ...

Learn how to boot into Safe Mode on Windows 8 with our easy-to-follow guide. Safe Mode is a diagnostic startup mode that allows you to troubleshoot and fix various issues with your Windows 8 system.

Turn off your system. Remove the power cord and disconnect all the peripherals. Disconnect the charger if it is a laptop. Press and hold the power button for up to 30 seconds. Turn on your system.

Windows 7 not booting? Learn how to fix startup issues using Safe Mode, Startup Repair, or command prompt tools.