If you’re able to boot into Windows, it’s a simple case of going to the Start menu, clicking Settings near the bottom, then on Update and Security.
Choose Recovery, then Advanced startup. Click on Startup settings and then Restart nowand when your computer reboots you will see some options.
Choose Troubleshoot and then Advanced options, Startup settings, Restart. Then pick from the list, in which Safe Mode should be no. 4.