What’s actually slowing this PC down?

Pick the symptom - the matching free tool is one click away.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

In Windows 11, F8 usually does not open the old boot menu because the default Standard boot policy ignores it during ordinary startup. To reach Safe Mode, use Windows Recovery; if F8 also fails inside Windows, check the keyboard’s Fn or F Lock mode, hardware, and drivers.

First identify where you expect F8 to work: during Windows startup, on the Startup Settings screen, or inside Windows. Those are separate situations with different fixes.

Use Windows Recovery to open Safe Mode

If Windows starts, use Advanced startup instead of repeatedly pressing F8 during boot:

  1. Open Settings and select System > Recovery.
  2. Next to Advanced startup, select Restart now.
  3. In Windows Recovery Environment, select Troubleshoot > Advanced options > Startup Settings > Restart.
  4. On the Startup Settings screen, press 4 or F4 for Safe Mode, 5 or F5 for Safe Mode with Networking, or 6 or F6 for Safe Mode with Command Prompt.

You can also hold Shift while selecting Power > Restart from the sign-in screen. If device encryption with BitLocker is enabled, Windows may ask for the recovery key before certain recovery tools can be used.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
#1 Best Overall
Sale
Logitech K120 Full Size Wired Keyboard USB Plug-and-Play Windows - Black
  • All-day Comfort: The design of this standard keyboard creates a comfortable typing experience thanks to the deep-profile keys and full-size standard layout with F-keys and number pad
  • Easy to Set-up and Use: Set-up couldn't be easier, you simply plug in this corded keyboard via USB on your desktop or laptop and start using right away without any software installation
  • Compatibility: This full-size keyboard is compatible with Windows 7, 8, 10 or later, plus it's a reliable and durable partner for your desk at home, or at work
  • Spill-proof: This durable keyboard features a spill-resistant design (1), anti-fade keys and sturdy tilt legs with adjustable height, meaning this keyboard is built to last
  • Plastic parts in K120 include 51% certified post-consumer recycled plastic*

Why F8 does not open Safe Mode

Windows 11 normally uses the Standard boot-menu policy. Under that policy, F8 is ignored during ordinary startup and the old Advanced Boot Options menu is not available. Startup Settings is a different screen: after WinRE opens it and the PC restarts, F8 selects the eighth listed startup option, which temporarily disables early-launch anti-malware protection. It does not open Startup Settings or select Safe Mode.

If you specifically need the legacy F8 boot menu

Use this only if you specifically want the old boot menu. Open Command Prompt as an administrator and run:

bcdedit /set {current} bootmenupolicy legacy

Restart the PC and try F8 during startup. To restore the standard Windows 11 behavior, run this from an elevated Command Prompt:

Rank #2
Amazon Basics Wired QWERTY Keyboard, Works with Windows, Plug and Play, Easy to Use with Media Control, Full-Sized, Black
  • KEYBOARD: The keyboard works for Windows with hot keys that enable easy access to Media, My Computer, Mute, Volume up/down, and Calculator
  • EASY SETUP: Experience simple installation with the USB wired connection
  • VERSATILE COMPATIBILITY: This keyboard is designed to work with multiple Windows versions, including Vista, 7, 8, 10 offering broad compatibility across devices.
  • SLEEK DESIGN: The elegant black color of the wired keyboard complements your tech and decor, adding a stylish and cohesive look to any setup without sacrificing function.
  • FULL-SIZED CONVENIENCE: The standard QWERTY layout of this keyboard set offers a familiar typing experience, ideal for both professional tasks and personal use.

bcdedit /set {current} bootmenupolicy standard

BCDEdit changes Boot Configuration Data and requires administrator privileges; restart for the change to take effect. Enter commands carefully. A one-time legacy menu can be requested with bcdedit /set {current} onetimeadvancedoptions on.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

If F8 does not work inside Windows

Check Fn Lock or F Lock

Some laptop and compact keyboards use the top row for both F1–F12 and hardware controls. The key may be sending an alternate command instead of F8.

  1. Try Fn + F8.
  2. Toggle Fn Lock using the shortcut documented for your keyboard or laptop; the combination varies by manufacturer.
  3. If the keyboard has an F Lock key, try it.
  4. Test F8 in a text editor, browser, or another application that recognizes function keys.

Test the keyboard hardware

Check whether the problem follows the keyboard or the PC:

Rank #3
Sale
Logitech MK120 Full Size Wired Keyboard and Mouse Combo - Black
  • Durable and Reliable: This USB keyboard features a curved space bar, spill-resistant design (2), durable keys that can withstand 10 million keystrokes, and sturdy, adjustable tilt legs
  • Comfortable, Familiar Typing: You’ll enjoy a comfortable and familiar typing experience thanks to the deep-profile keys and standard layout with full-size F-keys and number pad
  • Full-size Sculpted Mouse: The high-definition optical USB mouse puts comfort and control in your hands with smooth, accurate tracking and an ambidextrous shape that feels good hour after hour
  • Simple Set-Up: Simply plug the keyboard and mouse into the USB ports on your desktop, laptop, or netbook and you're ready to work; compatible with Windows 7, 8, 10 or later
  • Clear and Convenient: The bold, bright white and long-lasting characters make the keys on this PC or laptop keyboard easy to read and extra durable
  1. Unplug and reconnect a USB keyboard, try another USB port, and bypass an unpowered hub.
  2. For a wireless keyboard, check its batteries or charge, reconnect or reset the receiver, and troubleshoot Bluetooth pairing if applicable.
  3. Check for cable damage and dirt around the key. If possible, test the keyboard on another PC.
  4. Try a wired USB keyboard as a diagnostic. If the original keyboard also fails on another computer, it may need repair or replacement.

Update the keyboard driver through Windows

  1. Open Settings > Windows Update > Advanced options > Optional updates and install any relevant driver update.
  2. Alternatively, search for and open Device Manager, expand the keyboard-related category, open the device’s Driver tab, and select Update Driver.
  3. Restart the PC. If Windows does not offer a suitable driver, check the manufacturer’s support page for the exact device and Windows version.

Use the On-Screen Keyboard as an in-Windows workaround

Open Settings > Accessibility > Keyboard and turn on On-Screen Keyboard. You can also press Windows key + Ctrl + O if the necessary physical keys work. At the sign-in screen, select the Accessibility button to open it. The On-Screen Keyboard is an in-Windows workaround; it cannot reliably replace a physical key before Windows loads.

If Windows will not start normally

If ordinary recovery options are unavailable and Windows fails to start repeatedly, WinRE may launch Automatic Repair. Microsoft also documents interrupting startup twice by powering off when the Windows or manufacturer logo appears so that Automatic Repair appears on the third start. Use forced shutdowns only when needed, because they interrupt normal startup.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

From WinRE, options include Startup Repair, Startup Settings, Uninstall Updates, System Restore, Command Prompt, and UEFI Firmware Settings. If the trouble began just after an update, consider Uninstall Updates or System Restore rather than changing the F8 boot policy.

Rank #4
Sale
Rii RK907 Ultra-Slim Compact USB Wired Keyboard for MAC and PC-Black(1PCS)
  • A plug-and-play USB connection with Low-profile keys give you a quiet, comfortable typing experience
  • Simple Wired USB Connection,You will enjoy a comfortable and quiet typing experience
  • The keyboard for business and office working is the budget-friendly keyboard that is built for longer use
  • Low profile keys for a more comfortable and quiet keystroke, desktop-centric design, splash resistant

F8 does not universally open firmware settings

F8 during Windows boot is governed by Windows’ boot-menu policy. F8 on Startup Settings selects its eighth option, and F8 inside Windows depends on the keyboard mode and application. BIOS or UEFI setup keys vary by manufacturer; check the startup prompt or device documentation rather than assuming F8 opens firmware settings.

Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

FAQ

Why does F8 not open Safe Mode in Windows 11?

Windows 11 normally uses the Standard boot policy, which ignores F8 during ordinary startup. Open Settings > System > Recovery > Advanced startup or hold Shift while selecting Power > Restart, then choose Startup Settings in WinRE.

What does F8 do on the Startup Settings screen?

It selects the eighth listed startup option, which temporarily disables early-launch anti-malware protection. Use F4, F5, or F6 for the Safe Mode choices.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
Best Value
Sale
Logitech MK200 Full Size Wired Keyboard and Mouse Combo with Media Keys
  • The things you do most are right at your fingertips with one-touch controls for instant access to play/pause, volume, mute and the Internet.
  • Comfortable low-profile keys: Enjoy fast, fluid quiet typing on a familiar standard layout, including number pad.
  • High-definition optical mouse: Smooth, responsive cursor control from a comfortable sculpted mouse.
  • Sleek and durable design: Thin profile, spill-resistant design, durable keys and sturdy adjustable tilt legs. Tested under limited conditions (maximum of 60 ml liquid spillage). Do not immerse keyboard in liquid.
  • Plug-and-play PC compatibility: Simple USB connection. Works with Windows XP, Windows Vista, Windows 7, Windows 8 or later or Linux kernel 2.6 or later.

How do I make the legacy F8 menu available?

In an elevated Command Prompt, run bcdedit /set {current} bootmenupolicy legacy and restart. Restore the default behavior with bcdedit /set {current} bootmenupolicy standard.

Why does Fn + F8 work but F8 alone does not?

The keyboard may be in a mode where the top row sends alternate hardware commands. Check the manufacturer’s instructions for Fn Lock or use the keyboard’s F Lock key if it has one.

Can I use the On-Screen Keyboard before Windows starts?

No. It is a Windows accessibility tool and cannot reliably send key presses at the firmware or earliest boot-manager stage. Use WinRE, a physical USB keyboard, or the manufacturer’s documented firmware controls instead.

The Bottom Line

For Safe Mode, use Windows Recovery rather than relying on F8 during startup. Enable the legacy boot policy only if you specifically need the old menu. If F8 also fails inside Windows, check Fn or F Lock, test the keyboard hardware, and use Windows Update, Device Manager, or the manufacturer’s support page for drivers.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Quick Recap

SaleBestseller No. 1
Logitech K120 Full Size Wired Keyboard USB Plug-and-Play Windows - Black
Logitech K120 Full Size Wired Keyboard USB Plug-and-Play Windows - Black
Plastic parts in K120 include 51% certified post-consumer recycled plastic*; Product carbon footprint: 4.02 kg CO2e
$12.34
Bestseller No. 2
SaleBestseller No. 3
Logitech MK120 Full Size Wired Keyboard and Mouse Combo - Black
Logitech MK120 Full Size Wired Keyboard and Mouse Combo - Black
Product carbon footprint: 5.03 kg CO2e
$17.77
SaleBestseller No. 4
Rii RK907 Ultra-Slim Compact USB Wired Keyboard for MAC and PC-Black(1PCS)
Rii RK907 Ultra-Slim Compact USB Wired Keyboard for MAC and PC-Black(1PCS)
Simple Wired USB Connection,You will enjoy a comfortable and quiet typing experience
$8.49

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.