Cannot Boot To BIOS Setup (F2) or One-Time Boot Sequence Options …
Nov 26, 2020 · 1. First off, F2 or F12 does not work. 2. F2 right after the keyboard light comes on. 3. Continuous tapping of the F2 key, will cause the desktop not boot at all. 4. Continuous tapping of the …
Laptop Keyboard Isn't Working | Dell US
The function keys (F1 to F12) might be set to work as traditional function keys instead of multimedia keys in the BIOS. To use the alternate functions, such as adjusting volume, brightness, or muting the …
F12 Not Working to Get to Boot Menu | DELL Technologies
Dec 31, 2018 · The F12 key works when booted up to change the volume so I don't think the key itself is broken. I wanted to make the laptop boot from a Macrium Reflect recovery disk to see if the disk was …
How to Flash the BIOS or UEFI with a USB Flash Drive | Dell US
Sep 1, 2025 · Update your Dell BIOS using a USB drive when Windows won't boot. Quick F12 menu method for emergency BIOS flashing.
How to Run Dell Preboot Diagnostics and Hardware Tests on Your Dell ...
May 15, 2025 · How to run Dell Preboot diagnostics to identify hardware issues on your Dell computer. Learn instructions on using Dell onboard diagnostics, performing in-depth tests, and troubleshooting …
Flashing the BIOS from the F12 One-Time Boot Menu - Dell
Sep 8, 2025 · Updating the BIOS from the One Time Boot Menu Use the following steps to update the BIOS from the F12 One Time Boot menu: WARNING: Dell Technologies recommends disconnecting …
通过 F12 一次性启动菜单刷新 BIOS | Dell 中国
通过一次性启动菜单更新 BIOS 使用以下步骤通过 F12 一次性启动菜单更新 BIOS： 警告：Dell Technologies 推荐在戴尔计算机上更新 BIOS 之前断开所有设备的连接，包括外部硬盘驱动器、打印 …
SOLVED! Boot stops at Dell Logo screen and F2, F12 do not work, …
Sep 26, 2022 · SOLVED! Boot stops at Dell Logo screen and F2, F12 do not work, during Windows Update SOLVED! Optiplex 9010 was updating Windows 10 (Important!!). When I came back, it was …
如何启动进入 Windows 11 和 Windows 10 中的“高级启动选项”菜单
连接 Windows 恢复或安装介质，然后开启计算机。 轻按 F12 键，直至看到 一次性引导菜单。 从列表中选择 Windows 恢复或安装介质，然后按 Enter 键。 Windows Recovery Environment（Windows RE …
F12 Not Working - Even after common fixes | DELL Technologies
Jun 2, 2020 · The F-lock key is just to the right of the F12 key, so easy to hit by accident. Its purpose is to assign a second line of functions for the function keys i.e. hit F-Lock key once and it disables the …