When Windows restarts, hold down the power button for 10 seconds to turn off your device.Īllow your device to fully restart. On the first sign that Windows has started (for example, some devices show the manufacturer’s logo when restarting) hold down the power button for 10 seconds to turn off your device. Press the power button again to turn on your device. Hold down the power button for 10 seconds to turn off your device. To do this, you will repeatedly turn your device off, then on: Note: If you’ve encrypted your device, you’ll need your BitLocker key to start in safe mode.īefore you enter safe mode, you need to enter the Windows Recovery Environment (winRE).