I upgraded to Windows 11 and needed to switch my Gigabyte motherboard from legacy compatibility mode to UEFI for certain games. I entered the BIOS, disabled CSM Support, enabled Secure Boot, saved the changes, and restarted. The instructions then said to return to the BIOS, restore the factory Secure Boot keys, and enable Secure Boot again.
Since making the first change, I can no longer access the BIOS. I have tried disabling Windows Fast Startup, holding Shift while selecting Restart, running `shutdown /r /fw` from an elevated Command Prompt and PowerShell, and repeatedly pressing Delete during startup. Each time, the computer boots straight to Windows instead of opening the firmware settings. What is the safest way to get back into the BIOS?
3 Answers
The BIOS key can vary by motherboard and sometimes the startup screen is too quick to see. Try F12 during startup to open Gigabyte's boot menu; it may include an option to enter setup. You can also try repeatedly pressing F2 or Delete immediately after powering on, rather than waiting for Windows to begin loading.
From Windows, go to Settings > System > Recovery > Advanced startup and choose Restart now. Then select Troubleshoot > Advanced options > UEFI Firmware Settings > Restart. That should send the computer directly into the firmware setup, assuming Windows can detect the UEFI interface.
Before attempting a BIOS reflash, check the Windows recovery path and the correct motherboard key. Reflashing is a last resort and requires the exact BIOS file for the board. If the system still boots normally, the firmware probably has not been damaged; the issue is more likely the timing, keyboard connection, or firmware settings.
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