How To Enable F Keys | Switch Back To Standard Functions

Enable standard F1 to F12 keys by pressing Fn + Esc to toggle the lock, or disabling Hotkey Mode in your laptop’s BIOS or utility software.

You press F5 to refresh a browser tab, and your laptop dims the screen instead. Or you tap F2 to rename a file and the volume drops. This is the single most common keyboard frustration on modern laptops—and the fix is surprisingly simple once you know where to look.

The top row of keys on most PC laptops does double duty. By default, manufacturers assign media and hardware controls (brightness, volume, play/pause) to those keys. The F1 through F12 functions become secondary, requiring you to hold the Fn key. This guide covers the three working ways to flip that default and give the F keys their standard behavior back.

What Stops F1–F12 From Working Normally?

Your operating system doesn’t control this behavior—your laptop’s firmware does. The setting is called Hotkey Mode (Lenovo), Action Keys Mode (HP), or Function Key Behavior (Dell, ASUS). When enabled, the media shortcut takes priority over the F key. When disabled, pressing an F key sends the standard F1–F12 command without needing the Fn modifier.

The answer to “how to enable F keys” depends entirely on your laptop brand and model. The good news is there are only three routes to the fix, and one of them will work for your machine.

Method 1: Use The Fn Lock Key (Quickest Fix)

Many keyboards include a dedicated Fn Lock key. It’s usually the Esc key, marked with a small lock icon and the letters “FnLk.”

• Step: Press and hold the Fn key, then press the Esc (or Fn Lock) key once.
• A small LED on the Fn or Esc key may light up, or an on-screen notification confirms the lock is active. Open any app and press an F key to test—if Help opens with F1, the standard functions are enabled.
• Note: This toggle works on Lenovo, Dell, HP, and ASUS laptops that have a physical Fn Lock key. On some models, you just press Fn + Esc; on others, you press Fn + Caps Lock. Check your keyboard for the lock icon.

Method 2: Disable Hotkey Mode In The BIOS (Universal & Permanent)

When your laptop lacks a dedicated Fn Lock key, the definitive switch lives inside the BIOS or UEFI firmware. This is the method recommended by laptop manufacturers for a permanent fix that survives reboots.

How To Enter The BIOS To Enable F Keys

The entry key varies by brand, but the procedure is the same across all models.

• Step 1: Restart your laptop. As soon as the screen lights up, immediately press the BIOS key repeatedly until the firmware setup screen appears. Common keys: F1 (Lenovo), F2 (Dell, ASUS, Acer), F10 or Esc (HP).
• Step 2: Navigate to the Configuration tab, System Configuration tab, or Advanced tab using the arrow keys.
• Step 3: Find the setting labeled Hotkey Mode, Action Keys Mode, or Function Key Behavior. Set it to Disabled.
• Step 4: Press F10 to save and exit. Confirm when prompted.
• Your laptop restarts into Windows. Press F1 in any application—if the app’s help menu opens, the standard F keys are now enabled. If you still see a brightness or volume change, reboot and double-check the BIOS setting saved correctly.

If you cannot find this setting, use the table below to locate the correct BIOS tab based on your laptop brand.

Microsoft support states this feature is not a Windows setting but rather a firmware feature, so instructions vary by device and manufacturer.Microsoft’s guidance on function keys confirms the primary solution is the BIOS toggle.

Method 3: Use Manufacturer Utility Software

Some newer laptops, especially thin models from Lenovo, have removed the Hotkey Mode option from the BIOS entirely. If your BIOS doesn’t have it, your OEM software suite almost certainly does.

Lenovo Vantage (Lenovo Yoga 900s, 910, newer models)

• Step: Open the Lenovo Vantage app.
• Step: Click My Device Settings (or Hardware Settings).
• Step: Click Input & Accessories.
• Step: Toggle Fn Lock or set Hotkey Mode to Disabled.
• The function row immediately switches to standard F1–F12 behavior without needing a restart.

Lenovo’s official support documents note that if the Fn Lock toggle only works until the next restart, updating the BIOS or hotkey software usually resolves the persistence issue.

Dell QuickSet / Alienware Command Center

Dell users on older systems can use the Dell QuickSet utility, and Alienware owners can manage keyboard settings inside Alienware Command Center. The setting is usually labeled Fn Lock or Function Key Behavior.

What If I Need The F Key Just Once?

If you prefer to keep media shortcuts as the default but occasionally need a standard F key, just press and hold the Fn key while pressing the desired F key. This method works on every laptop with a physical Fn key and requires zero configuration changes.

Troubleshooting: Why Does My Fn Setting Keep Resetting?

A small percentage of users report that the Fn Lock setting reverts after a restart. This usually has a simple fix.

For Lenovo users specifically, the company recommends updating your BIOS to the latest version if the setting does not persist. On some models such as the Yoga 900s and Yoga 910, the hotkey settings were removed from BIOS entirely and must be managed in Lenovo Vantage.

Pick The Fix That Fits Your Laptop

The fastest path to enable F keys is pressing Fn + Esc if your keyboard has the lock icon. If that does nothing, enter the BIOS and disable Hotkey Mode or Action Keys Mode—this is the most reliable, set-it-and-forget-it solution across all brands. For newer Lenovo and Surface devices, skip the BIOS and check the manufacturer’s utility software. Any of these routes will give you back the standard F1–F12 keys you need.