 How to enter save mode in Windows 10 The first way is here. Go to Start menu and select Settings, Update and Security. In the window of selecting your own, your next tab, click on Troubleshoot, then Advanced Options and Startup Settings. Enable save mode. The second way is this. Press Window and R on the keyboard and enter MS Config. In the Boot tab, check the box Save Boot. The third method is like this. If your system boots but you cannot log in, press Power button and click on Restart while holding down Shift button on your keyboard. As you do that, follow the steps described in the first method, the fourth method. If your system won't boot at all, for this method, you will need to use a boot disk or a flash drive with Windows 10 or a cover drive.