To boot to Safe Mode with Networking, go to "Start" and select "Settings". Select "Update & Security". Navigate to "Recovery", and click on "Restart now".
After your PC restarts, select "Troubleshoot" on the "Choose an option" screen. Choose "Advanced options". Select "Startup Settings", and click on "Restart".
After your system restarts, press "F5" to continue. Your system will now boot into "Safe Mode with Networking".