Bluetooth devices are designed to make your workspace clean and cable-free, but it can be incredibly frustrating when your Bluetooth mouse or keyboard keeps disconnecting automatically. Some users experience random disconnections while working, while others notice that their Bluetooth keyboard or mouse shows Disconnected every time they restart the PC and must reconnect it manually.
Fortunately, this issue is usually caused by Windows settings, Bluetooth drivers, or power management features rather than faulty hardware. In this guide, you'll learn the most effective solutions to fix Bluetooth connection problems on Windows 11 and Windows 10.
Why Does My Bluetooth Mouse or Keyboard Keep Disconnecting?
There are several reasons why Bluetooth devices disconnect automatically, including:
Outdated or corrupted Bluetooth drivers
Windows power-saving settings
Bluetooth Support Service not starting correctly
Fast Startup conflicts
Recent Windows updates
Low battery in the Bluetooth device
Wireless interference from nearby devices
Corrupted Bluetooth pairing information
If your keyboard or mouse disconnects only after restarting your computer, Windows may not be reconnecting to previously paired Bluetooth devices correctly.
Method 1: Restart Your Computer
Before making any changes, restart your computer once. Temporary software glitches often disappear after a fresh reboot, especially if Windows recently installed updates.
Method 2: Check the Battery Level
A low battery is one of the most common causes of Bluetooth disconnections.
Replace the batteries if your keyboard or mouse uses AA or AAA batteries.
Recharge the device if it has a built-in rechargeable battery.
Turn the device off for 10 seconds, then turn it back on.
Method 3: Turn Bluetooth Off and Back On
Refreshing the Bluetooth connection can restore communication between Windows and your device.
Open Settings.
Click Bluetooth & devices.
Turn Bluetooth Off.
Wait about 10 seconds.
Turn Bluetooth On again.
Check whether the keyboard or mouse reconnects automatically.
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Method 4: Remove and Pair the Device Again
If Windows has stored incorrect Bluetooth pairing information, repairing the device often fixes the problem.
Open Settings > Bluetooth & devices.
Click your Bluetooth keyboard or mouse.
Select Remove device.
Restart your PC.
Put the device into pairing mode.
Pair it with Windows again.
Restart your computer once more to verify that it reconnects automatically.
Method 5: Disable Bluetooth Power Saving
Windows may turn off the Bluetooth adapter to save power, causing unexpected disconnections.
Press Windows + X and open Device Manager.
Expand Bluetooth.
Right-click your Bluetooth adapter and select Properties.
Open the Power Management tab.
Uncheck Allow the computer to turn off this device to save power.
Click OK.
Restart your PC.
Method 6: Set Bluetooth Support Service to Automatic
The Bluetooth Support Service is responsible for managing Bluetooth devices. If it doesn't start correctly, Windows may fail to reconnect your keyboard or mouse after restarting.
Press Windows + R.
Type services.msc and press Enter.
Find Bluetooth Support Service.
Double-click it.
Set Startup type to Automatic.
If the service is stopped, click Start.
Click Apply, then OK.
Restart your computer and check whether the problem is resolved.
Method 7: Disable Fast Startup
Fast Startup helps Windows boot more quickly, but it can sometimes prevent Bluetooth devices from reconnecting properly.
Open Control Panel.
Click Power Options.
Select Choose what the power buttons do.
Click Change settings that are currently unavailable.
Uncheck Turn on fast startup (recommended).
Save the changes.
Restart your PC.
Many users have fixed Bluetooth reconnection issues by disabling this feature.
Method 8: Update the Bluetooth Driver
An outdated Bluetooth driver may cause your mouse or keyboard to disconnect automatically.
Open Device Manager.
Expand Bluetooth.
Right-click the Bluetooth adapter.
Choose Update driver.
Install the latest available driver.
For the best results, download the newest Bluetooth driver from your laptop or motherboard manufacturer's website.
Method 9: Reinstall the Bluetooth Driver
If updating the driver doesn't solve the problem, reinstall it.
Open Device Manager.
Right-click your Bluetooth adapter.
Select Uninstall device.
Confirm the removal.
Restart your computer.
Windows will automatically reinstall the required Bluetooth driver during startup.
Method 10: Install the Latest Windows Updates
Microsoft frequently releases bug fixes for Bluetooth through Windows Update.
Open Settings.
Select Windows Update.
Click Check for updates.
Install all available updates, including optional driver updates if offered.
Restart your computer.
Method 11: Reduce Wireless Interference
Bluetooth devices can lose connection if they experience wireless interference.
Keep your keyboard and mouse away from:
Wi-Fi routers
USB 3.0 devices
Wireless speakers
Microwaves
Other Bluetooth accessories
Also keep the Bluetooth device within its recommended operating range.
Method 12: Test the Device on Another Computer
Connect your Bluetooth mouse or keyboard to another computer, laptop, tablet, or smartphone.
If it disconnects on multiple devices, the Bluetooth device itself may be faulty.
If it works perfectly elsewhere, the issue is most likely related to your Windows PC or Bluetooth adapter.
Extra Tip: Bluetooth Keyboard or Mouse Disconnects After Every PC Restart
If your Bluetooth keyboard or mouse always shows Disconnected after restarting your computer and only works after reconnecting manually, try these solutions first:
Set Bluetooth Support Service to Automatic.
Disable Fast Startup.
Remove and pair the Bluetooth device again.
Update or reinstall the Bluetooth driver.
Disable Bluetooth power-saving options.
These methods resolve the issue for most Windows users.
Final Words
Bluetooth mouse and keyboard disconnecting automatically is a common Windows problem, but it can usually be fixed without replacing your hardware. In most cases, updating the Bluetooth driver, disabling power-saving features, turning off Fast Startup, or repairing the Bluetooth device restores a stable connection.
If none of these methods work, the issue could be related to a faulty Bluetooth adapter, outdated BIOS, or a hardware problem with the keyboard or mouse. In that case, install the latest drivers from your computer manufacturer's website or test the device with another computer to identify the exact cause.
We hope this guide helped you fix your Bluetooth connection problem. If you're still facing issues, let us know your Windows version, Bluetooth adapter, and keyboard or mouse model so we can help you further.
