How to Fix Bluetooth Not Working or Not Pairing on Windows 11

Bluetooth that suddenly stops working on Windows 11, often right after a cumulative update, is almost always a driver or service problem, not a hardware failure. Headphones vanish from the list, a mouse pairs but drops, or the entire Bluetooth toggle disappears from Settings. Here is a methodical way to get your devices pairing again, working from the simplest checks to a clean driver reinstall.

Key takeaways

• A vanished Bluetooth toggle almost always means a driver problem, jump straight to the driver section.
• Restarting the Bluetooth Support Service and setting it to Automatic fixes a large share of "nothing pairs" cases.
• A clean driver reinstall (uninstall, then reboot) is the most reliable fix after a Windows update.
• Re-pairing clears the corrupted pairing records behind connect-then-drop behavior.
• For stubborn adapters, get the driver from your PC or motherboard maker, not just Windows Update.

Start with the basics

Before digging into settings, rule out the simple causes.

• Confirm Bluetooth is on in Settings then Bluetooth and devices, and in the Quick Settings panel from the taskbar.
• Toggle Airplane mode on, wait ten seconds, and off. This re-initializes every wireless radio.
• Make sure the accessory is charged, powered on, and in pairing mode.
• Keep the device within a few feet of the PC, away from USB 3.0 hubs and other 2.4GHz gear that cause interference.

If the entire Bluetooth toggle has disappeared from Settings, that is a strong driver signal, skip to the driver section below.

Match your symptom to the most likely cause and the fastest fix:

Symptom	Likely cause	First fix to try
Bluetooth toggle missing from Settings	Lost or corrupted driver	Reinstall the adapter driver in Device Manager
Nothing pairs at all	Bluetooth Support Service stopped	Restart the service, set it to Automatic
Device pairs then immediately drops	Corrupted pairing record	Remove the device and re-pair it
Broke right after a Windows update	Incompatible driver swapped in	Reinstall or roll back the driver
Audio cuts out mid-session	Flaky driver or 2.4GHz interference	Reinstall maker's driver, move from USB 3.0 hubs

Run the built-in troubleshooter

Windows 11 includes an automated Bluetooth troubleshooter that can reset services and detect common faults.

1. Open Settings then System then Troubleshoot then Other troubleshooters.
2. Find Bluetooth and click Run.
3. Follow the prompts.

You can also launch it from the Get Help app, which walks through diagnostics automatically.

Restart the Bluetooth Support Service

If the Bluetooth Support Service has stopped or hung, nothing will pair regardless of your other settings.

1. Press Windows + R, type services.msc, and press Enter.
2. Scroll to Bluetooth Support Service.
3. Right-click it and choose Restart.
4. Right-click again, choose Properties, and set Startup type to Automatic.

Remove and re-pair the device

A corrupted pairing record makes a device connect and immediately drop, or never finish pairing.

1. Go to Settings then Bluetooth and devices then Devices.
2. Click the More options menu next to the problem device.
3. Choose Remove device then Yes.
4. Put the accessory back into pairing mode and add it fresh with Add device.

Update or reinstall the Bluetooth driver

This is the most common fix when Bluetooth breaks after a Windows update, which can leave an older or incompatible driver in place. If a recent Patch Tuesday is the trigger, you may also be hitting one of the broader Windows 11 update servicing errors that leave drivers in a half-installed state.

1. Right-click Start and open Device Manager.
2. Expand Bluetooth and find your adapter, the name often includes the word "radio."
3. Right-click it and choose Update driver then Search automatically.

If updating does not help, reinstall the driver cleanly:

1. Right-click the adapter and choose Uninstall device.
2. If offered, tick Delete the driver software for this device for a fully fresh start.
3. Restart the PC. Windows reinstalls a fresh driver automatically on boot.

For the most reliable result, download the latest Bluetooth driver directly from your PC or motherboard manufacturer's support page rather than relying on Windows Update alone.

Toggle Fast Startup and check for updates

Two more resets clear lingering glitches.

• Disable Fast Startup under Control Panel then Power Options then Choose what the power buttons do. Fast Startup sometimes leaves the Bluetooth stack half-initialized after shutdown.
• Install any pending Windows updates under Settings then Windows Update. Microsoft regularly ships Bluetooth driver and firmware fixes through Windows Update.

If Bluetooth broke specifically after one update and rolling forward does not help, the broader playbook for Bluetooth that fails after a Windows 11 update covers rolling the driver back to the previous version.

Check for conflicting devices

If one device fails while others pair fine, the issue is likely that device's firmware. Check its companion app for an update. Interference is also worth ruling out, a USB 3.0 drive or hub plugged in next to the adapter radiates noise across the 2.4GHz band that Bluetooth shares.

Confirm it works

After re-pairing, test the device through a full session, not just the initial connection. Bluetooth audio that pairs but cuts out usually points back to a driver, so if drops continue, reinstall the adapter driver from the manufacturer. Most Windows 11 Bluetooth problems resolve once the service is restarted and a current driver is in place.

What to do right now

Run these in order and stop at the first one that fixes it:

• Toggle Airplane mode on for ten seconds, then off, to re-initialize the radio.
• Open services.msc, restart Bluetooth Support Service, and set Startup type to Automatic.
• Remove the misbehaving device and re-pair it from scratch.
• In Device Manager, uninstall the Bluetooth adapter (delete the driver), then reboot to reinstall it fresh.
• If it still fails, download the adapter driver from your PC or motherboard maker, not just Windows Update.
• Disable Fast Startup so the Bluetooth stack initializes cleanly on every boot.

Frequently asked questions

Why did my Bluetooth toggle disappear from Settings entirely?

A missing toggle almost always means Windows lost or corrupted the Bluetooth driver, frequently after an update. Open Device Manager, look for the adapter (possibly under "Other devices" with a warning icon), and reinstall the driver. The toggle returns once a valid driver loads.

Should I update the driver through Windows Update or the manufacturer?

Try Windows Update and Device Manager's automatic search first because they are fastest. If the problem persists, the manufacturer's site usually has a newer or more stable driver than Microsoft ships, especially for Intel and Realtek adapters.

Why does my Bluetooth headset connect but keep cutting out?

Audio dropouts usually trace to a flaky driver or 2.4GHz interference. Reinstall the adapter driver from the manufacturer, move away from USB 3.0 hubs and Wi-Fi routers, and confirm the headset firmware is current through its app.

Does disabling Fast Startup hurt anything?

No. Fast Startup only changes how Windows shuts down and boots; turning it off adds a few seconds to startup but often resolves Bluetooth, audio, and driver glitches that a true cold boot clears.