How to Fix Bluetooth After Windows Update (July 2026) Complete Guide

Your wireless mouse suddenly stops responding. Your Bluetooth headphones won’t connect. You check Settings and the Bluetooth toggle is completely gone. If this happened right after a Windows update, you’re not alone—this is one of the most frustrating and common issues Windows users face. The good news? I’ve helped dozens of people resolve this exact problem, and in most cases, the fix is simpler than you’d expect.

In this guide, I’ll walk you through exactly how to fix Bluetooth that stopped working after a Windows update. I’ve organized these solutions from the quickest, easiest fixes to more involved troubleshooting steps. By the end, your Bluetooth should be working again—whether you’re on Windows 10 or Windows 11.

Why Does Windows Update Break Bluetooth?

Before diving into fixes, it helps to understand why this happens. Windows updates can break Bluetooth in several ways:

Driver incompatibility: When Windows updates, it may replace your working Bluetooth driver with a newer version that’s actually incompatible with your specific hardware. This is the most common cause.

Corrupted system files: Large updates can sometimes corrupt system files that Bluetooth depends on to function properly.

Fast Startup interference: Windows Fast Startup feature can prevent Bluetooth drivers from loading correctly after updates because the system never truly shuts down—it just hibernates.

Service conflicts: Updates may disable or change the startup type of essential Bluetooth services without your knowledge.

Now let’s fix it. I recommend trying these solutions in order, starting with the quick fixes.

Quick Fixes to Try First

These solutions take less than a minute each and resolve the issue for many users. Start here before moving to more complex troubleshooting.

Toggle Bluetooth Off and On

Sometimes the simplest fix works. Go to Settings > Bluetooth & devices and toggle Bluetooth off, wait 5 seconds, then toggle it back on. If the toggle is missing entirely, skip to the next sections.

If your Bluetooth icon is in the system tray (bottom-right corner), you can also click it and toggle Bluetooth from there. This quick reset can resolve minor driver hiccups caused by the update.

Restart Your Computer

I know it sounds basic, but a full restart—not a shutdown—can fix Bluetooth issues. Windows 10 and 11 use Fast Startup by default, which means shutting down doesn’t actually restart the kernel. Click Start > Power > Restart to force a complete reboot.

This gives Windows a chance to reload Bluetooth drivers and services from scratch.

Check Airplane Mode

It sounds obvious, but Airplane mode disables all wireless connections including Bluetooth. Click the network icon in your system tray and make sure Airplane mode is turned off. If it’s on, turn it off and wait a few seconds for Bluetooth to reconnect.

Some laptops have a physical Airplane mode key (often F7 or F12 with an airplane icon). Make sure you haven’t accidentally pressed it.

Run the Windows Bluetooth Troubleshooter

Windows includes a built-in Bluetooth troubleshooter that can automatically detect and fix common problems. Here’s how to run it:

Press Windows key + I to open Settings. Go to System > Troubleshoot > Other troubleshooters. Find “Bluetooth” in the list and click Run.

The troubleshooter will check for issues like disabled Bluetooth, driver problems, and service conflicts. Follow the on-screen prompts and apply any fixes it recommends.

If the troubleshooter finds nothing, don’t worry—this just means the issue requires manual intervention. Let’s move to the next steps.

Check if Bluetooth is Enabled in Settings

Sometimes the update resets your Bluetooth settings without actually breaking the driver. Here’s how to verify:

Open Settings with Windows key + I and navigate to Bluetooth & devices. You should see a toggle switch at the top to turn Bluetooth on or off.

If the toggle is missing: This indicates Windows cannot detect your Bluetooth adapter at all. This typically means a driver issue—skip ahead to the driver troubleshooting sections.

If the toggle shows but won’t turn on: Your Bluetooth adapter is detected but not functioning correctly. The driver update sections will help resolve this.

If it says “Bluetooth is not available on this device”: Windows has lost connection to your Bluetooth hardware. Try the Device Manager fixes next.

Update Bluetooth Drivers via Device Manager

When Windows updates break Bluetooth, the culprit is almost always the driver. Let’s check and update your Bluetooth driver manually.

Access Device Manager

Press Windows key + X and select Device Manager from the menu. Alternatively, right-click the Start button and choose Device Manager.

If you see a yellow exclamation mark next to any Bluetooth device, that’s your problem—Windows has identified a driver issue.

Find Your Bluetooth Adapter

Expand the Bluetooth section by clicking the arrow next to it. You should see your Bluetooth adapter listed—it will have a name like “Intel Wireless Bluetooth,” “Realtek Bluetooth,” “Qualcomm Bluetooth Adapter,” or similar.

If you don’t see a Bluetooth section at all, click View > Show hidden devices in the menu bar. If Bluetooth still doesn’t appear, your adapter may be disabled in BIOS or has a hardware issue.

Update the Driver

Right-click your Bluetooth adapter and select Update driver. Choose Search automatically for drivers. Windows will check Microsoft’s driver database for a newer or compatible driver.

If Windows finds a driver, let it install and then restart your computer. Test Bluetooth to see if it works.

If Windows says the best driver is already installed, try this: Go back to the update screen and choose Browse my computer for drivers > Let me pick from a list of available drivers on my computer. You may see older driver versions listed—try one of those.

Also check for optional updates: Go to Settings > Windows Update > Advanced options > Optional updates. Sometimes driver updates appear here rather than in the main Windows Update.

Roll Back Driver (If It Worked Before the Update)

This is one of the most effective fixes when Bluetooth stops working immediately after an update. Rolling back the driver restores the previous, working version.

Open Device Manager and find your Bluetooth adapter as described above. Right-click it and select Properties. Click the Driver tab at the top.

Look for the Roll Back Driver button. If it’s grayed out, Windows doesn’t have a previous driver version saved—skip to the next section.

If the button is clickable, press it. Select a reason for rolling back (any option works) and click Yes. Windows will restore the previous driver version.

Restart your computer and test Bluetooth. This fix works particularly well when Windows Update replaced your manufacturer’s driver with a generic Microsoft driver that doesn’t fully support your hardware.

Uninstall and Reinstall Bluetooth Adapter

If updating or rolling back doesn’t work, completely removing and reinstalling the Bluetooth adapter often resolves the issue. This forces Windows to set up the device from scratch.

Uninstall the Adapter

Open Device Manager and expand the Bluetooth section. Right-click your Bluetooth adapter and select Uninstall device.

A confirmation dialog appears. Check the box that says “Attempt to remove the driver for this device” if available. This ensures the problematic driver is removed, not just hidden.

Click Uninstall. Your Bluetooth adapter will disappear from the list.

Restart to Reinstall

Restart your computer. Don’t manually reinstall anything—Windows will automatically detect the “new” hardware and install fresh drivers.

After the restart, go back to Device Manager. You should see your Bluetooth adapter listed again under Bluetooth, without any yellow warning icons.

Go to Settings and check if Bluetooth now works. If it still doesn’t appear or won’t turn on, continue with the next troubleshooting steps.

Restart Bluetooth Services

Windows relies on background services to manage Bluetooth. If these services stopped or got disabled during the update, Bluetooth won’t work even with correct drivers.

Press Windows key + R to open the Run dialog. Type services.msc and press Enter.

In the Services window, scroll down and find Bluetooth Support Service. Right-click it and check the Startup type—it should be set to Automatic.

If the service is not running, click Start to start it. If it’s already running, click Restart to refresh it.

While you’re here, also check Bluetooth Audio Gateway Service and Bluetooth User Support Service. Make sure they’re also set to Automatic and running.

Close Services and test Bluetooth again. This fix resolves issues where the update changed service configurations.

Disable Fast Startup (The Hidden Culprit)

This is the fix that many guides miss, but it’s resolved Bluetooth issues for countless users—including one person who spent hours trying every other solution. Fast Startup is a Windows feature that speeds up boot times by saving system state to a file instead of fully shutting down. The problem? This can prevent drivers from loading correctly after updates.

Here’s how to disable Fast Startup:

Press Windows key + R, type control, and press Enter to open Control Panel. Go to Hardware and Sound > Power Options. On the left side, click Choose what the power buttons do.

Click “Change settings that are currently unavailable” at the top. You’ll need administrator rights for this.

Under “Shutdown settings,” uncheck “Turn on fast startup (recommended)”. Click Save changes at the bottom.

Now fully shut down your computer and turn it back on—not a restart, but a complete shutdown. This forces a full initialization of all hardware, including Bluetooth.

Many users report this single change fixed their Bluetooth issues after trying everything else. The update enabled Fast Startup, and the hibernation state was preventing Bluetooth drivers from loading properly.

Run System File Checker

If the Windows update corrupted system files that Bluetooth depends on, the System File Checker can repair them. This is a more advanced fix but worth trying.

Press Windows key, type cmd, right-click “Command Prompt,” and select Run as administrator. Click Yes when prompted.

In the Command Prompt window, type the following and press Enter:

sfc /scannow

This process takes 5-15 minutes. Windows will scan all protected system files and replace corrupted ones with cached copies.

When it finishes, you’ll see one of these messages:

“Windows Resource Protection did not find any integrity violations” — Your system files are fine, and the issue is elsewhere.

“Windows Resource Protection found corrupt files and successfully repaired them” — Great! The scan fixed corrupted files. Restart and test Bluetooth.

“Windows Resource Protection found corrupt files but was unable to fix some of them” — Try running DISM next. In the same Command Prompt window, type:

DISM /Online /Cleanup-Image /RestoreHealth

This downloads replacement files from Windows Update. After it completes, run sfc /scannow again.

Check for USB 3.0 Interference

This is a lesser-known cause of Bluetooth problems. USB 3.0 ports and devices operate at frequencies that can interfere with Bluetooth signals. If you’re using USB 3.0 devices, they might be blocking your Bluetooth adapter.

Move any USB 3.0 devices (external drives, hubs) away from your computer. If your Bluetooth adapter is external, move it to a different USB port—preferably a USB 2.0 port if available.

Also check if your Bluetooth dongle is plugged in directly next to USB 3.0 devices. Simply rearranging ports can resolve interference issues.

This fix is especially relevant if Bluetooth works intermittently or only fails when certain USB devices are connected.

Check BIOS/UEFI Settings

In rare cases, a Windows update can change BIOS settings, disabling Bluetooth at the hardware level. If nothing else has worked, check your BIOS.

Restart your computer and press the BIOS key during startup—usually F2, F10, F12, or Delete, depending on your manufacturer. Watch the screen for a message like “Press [key] to enter setup.”

Once in BIOS, look for a section called Integrated Peripherals, Advanced, or Onboard Devices. Find the Bluetooth setting and ensure it’s Enabled.

Save changes and exit BIOS (usually F10). Your computer will restart. Check if Bluetooth now works.

Common BIOS keys by manufacturer:

HP: F10 or Escape

Dell: F2

Lenovo: F2 or Fn + F2

ASUS: F2 or Delete

Acer: F2

Microsoft Surface: Hold Volume Up while pressing Power

How to Prevent Future Bluetooth Issues?

Once you’ve fixed your Bluetooth, take these steps to prevent future update-related problems:

Pause automatic updates temporarily: When Microsoft releases major updates, wait a few weeks before installing. This gives them time to fix bugs. Go to Settings > Windows Update and click “Pause for 1 week” or “Pause for 5 weeks.”

Back up your drivers: Before major updates, use a tool like Double Driver or DriverBackup! to back up your current drivers. If an update breaks Bluetooth, you can restore the working driver.

Get drivers from your manufacturer: Windows Update drivers are often generic. Visit your laptop manufacturer’s website (Dell, HP, Lenovo, etc.) and download the latest Bluetooth drivers specifically for your model. These are tested for your exact hardware.

Keep Fast Startup disabled: If disabling Fast Startup fixed your Bluetooth, leave it disabled. The slightly longer boot time is worth the improved hardware reliability.

When to Use an External Bluetooth Adapter?

If your built-in Bluetooth adapter is physically damaged or persistently fails despite all fixes, an external USB Bluetooth adapter is an affordable solution. These plug into any USB port and provide Bluetooth functionality without requiring hardware repair.

External adapters are also useful if your computer never had Bluetooth capability. Most cost between $15-40 and support the latest Bluetooth 5.0 or 5.3 standards.

When choosing an adapter, look for:

Bluetooth 5.0 or higher for best range and speed

Plug-and-play compatibility with Windows 10/11

Positive reviews mentioning easy setup and stable connections

USB form factor (avoid bulky adapters that block adjacent ports)

Check for Yellow Exclamation Marks in Device Manager

A yellow exclamation mark on any Bluetooth device in Device Manager indicates a driver or hardware problem. Here’s what the error codes mean:

Error Code 10: The device cannot start. Usually a driver issue—try updating or reinstalling the driver.

Error Code 19: Registry problem. Run sfc /scannow to fix system files.

Error Code 28: Drivers not installed. Right-click the device and select “Update driver” or “Scan for hardware changes.”

Error Code 43: Windows stopped the device due to problems. This can indicate hardware failure, but try uninstalling and reinstalling first.

To see the error code, right-click the device with the exclamation mark, select Properties, and check the “Device status” box under the General tab.

What to Do If Nothing Works

If you’ve tried every solution above and Bluetooth still doesn’t work:

Perform a hardware reset: Shut down your computer completely, unplug the power cable, and remove the battery if it’s removable. Hold the power button for 30 seconds to drain residual power. Reconnect everything and start up.

Check for Windows updates: Sometimes Microsoft releases follow-up patches that fix issues introduced by previous updates. Go to Settings > Windows Update and check for updates.

Contact your manufacturer: If your computer is under warranty, the Bluetooth adapter may have failed coincidentally (not caused by the update). The manufacturer can run diagnostics and repair or replace it.

Use an external adapter: As mentioned above, a USB Bluetooth adapter provides a reliable workaround if your internal adapter has failed.

Create a new user account: Rarely, the issue is profile-specific. Create a new Windows user account and test Bluetooth there. If it works, your user profile may be corrupted.

Frequently Asked Questions

Conclusion

Learning how to fix Bluetooth that stopped working after a Windows update can save you hours of frustration. In most cases, the solution involves updating or rolling back your Bluetooth driver, disabling Fast Startup, or reinstalling the Bluetooth adapter in Device Manager. Start with the quick fixes—toggling Bluetooth and restarting—then work through the driver solutions if needed.

Don’t overlook the Fast Startup fix, as it’s resolved this issue for many users when nothing else worked. And if your Bluetooth still won’t cooperate after trying everything, a USB Bluetooth adapter provides an affordable, reliable alternative. Your wireless devices will be back up and running in no time.