There are several ways to enable Safe Mode in Windows 10. JGI/Jamie Grill/Getty Images Safe Mode is a Windows 10 feature that starts your computer with most of its nonessential features disabled. You should boot in Safe Mode when you're troubleshooting an issue, or if Windows 10 won't start normally. To exit Safe Mode, go into the "Boot options" menu, or just restart your computer. Visit Insider's Tech Reference library for more stories. Nearly every version of Windows has a Safe Mode feature.