Advanced startup options (including safe mode) - Microsoft Support
https://support.microsoft.com/en-us/windows/advanced-startup-options-including-safe-mode-b90e7808-80b5-a291-d4b8-1a1af602b617
WebSafe Mode . Starts Windows with a minimal set of drivers and services. To start in safe mode: Remove all floppy disks, CDs, and DVDs from your computer, and then restart your computer. Click the Start button , click the arrow next to the Shut Down button (or the arrow next to the Lock button), and then click Restart.
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