Hi CRYPTOTH
Welcome to Microsoft Community.
Based on your description, I understand that you are troubled by the sudden disappearance of the Bluetooth function after the update, and I understand your feelings very well!
This situation is indeed frustrating. Please be assured that this is usually caused by a software configuration conflict or driver compatibility issue, not a hardware failure.
I'm just a support person on the forums, not a member of the Windows development team, and I'd like to do what I can to help you resolve this issue or find the cause of the problem. Thank you for your understanding, I really appreciate it!
The problem is usually caused by the following reasons:
1. Driver signature conflict: the driver verification mechanism has been strengthened in the 24H2 update, resulting in some old drivers being quarantined
2. Service stack corruption: security updates may mistakenly damage Bluetooth-related registry entries
3. Power management conflicts: the new power scheme causes the Bluetooth module to enter an unrecoverable sleep state
I have read your problem description over and over again and here is my customized solution for your situation. However, as this first reply requires different aspects of troubleshooting, please understand and provide more information (pictures would be great!) in your reply. Thank you very much!
Option 1: Deep Driver Repair
1. Uninstall the Bluetooth stack completely
(1) Press Win+X -> Select Device Manager
(2) Click View -> Show Hidden Devices in the top menu bar.
(3) Expand the Bluetooth branch, right-click on any item with a gray icon (especially Intel Wireless Bluetooth or Realtek Bluetooth), and select Uninstall Device
(4) Be sure to check the “Attempt to remove the driver for this device” box, and reboot when done.
2. Force reinstallation of stock drivers (Win10 driver compatibility program)
(1) Go to Lenovo support page to download the latest Bluetooth driver: Legion Y530 driver page
(2) Right click the downloaded driver installation file > Properties > Compatibility tab
(3) Check “Run in compatibility mode” > Select Windows 10 > Check “Run as administrator”
(4) Immediately after the installation is complete, perform a Cold Start: Shut down the computer > Unplug the power and battery (if removable) > Press and hold the power button for 30 seconds > Re-power on the computer
Option 2: System level repair operation.
1. we first reset the services and functions.
(1) Press Win+R and type services.msc to check the status of the following services:
Bluetooth Handsfree Service (changed to automatic/started)
Bluetooth Support Service (changed to automatic/started)
(2) Click “Windows Logo Key” to open the search bar -> Enter “Windows PowerShell” in the search bar and open it with administrator privileges -> Please enter the following commands
Get-WindowsFeature *bluetooth* | Where { $_.InstallState -eq "Disabled" } | Install-WindowsFeature
2. Sometimes the problem may occur due to the corruption or loss of some system files.
At this point we try to repair the system completely in two ways to at least make sure that the problem is not due to system corruption.
(1) Scan and repair the system from the command line.
Click “Windows Logo Key” to open the search bar -> Type “cmd” in the search bar and open it with administrator privileges -> Please enter the following commands
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /RestoreHealth
SFC /Scannow
Please note: The above commands need to be repeated 5~6 times to ensure the completeness of the scan!
(2) Please try the non-destructive repair.
The steps are:
(1) First download the ISO image file of Windows 11 via the following link.
The link is: Download Windows 11
(2) After the ISO file is downloaded, double-click it to open and run “setup.exe”.
(3) Under the “Install Windows 11” screen, select “Change how the installer downloads updates”.
(4) Under the “Get Updates, Drivers, and Optional Features” screen, select “Not Now”.
(5) Follow the instructions to continue.
Please note: If you are prompted to enter a key, the downloaded ISO image file does not match the current system version.
(6) Under the “Select what to keep” screen, please make sure to select “Keep personal files and applications” so that the contents of your computer will not be affected or lost.
(7) Start the non-destructive repair.
Option 3: Please try to clean boot your computer.
Since clean boot only uses a limited set of files and drivers, it can help us to effectively troubleshoot the possibility of problems caused by third-party applications, driver conflicts, etc.
You can refer to Clean Boot for more information: How to perform a clean boot in Windows - Microsoft Support
After clean boot, please slide down the webpage after opening the link and find “How to determine what is causing the problem after you do a clean boot” This is a dichotomy that helps us pinpoint the service that is causing the problem and disable it.
Disclaimer: A “clean boot” starts Windows with a minimal set of drivers and startup programs. It helps to determine whether a background service is interfering with your game or program and to isolate the cause of a problem. These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by step so that it will help you get back on track.
Option 4: System Time Rollback (Data Retention)
If the above steps don't work, search for “Restore” in Settings > select “Go back to an earlier version”
Select a restore point from before the January 2025 update (need to make sure a system restore point has been created)
Please note: Restore Points to restore your system will not delete your personal files and data, but will remove third-party applications, drivers, and Windows Update installed after the restore point time.
Option 5: We can also try to manually uninstall all January 2025 updates.
“WIN + i” to open Settings -> Select ‘Windows Update’ on the left sidebar -> ‘Update history’ -> ‘Uninstall updates’ -> Uninstall updates based on date and time.
Please note: Some security patch updates may not be able to be uninstalled, but they usually do not affect the normal use of Bluetooth.
Option 6: Lenovo has a hidden hardware diagnostic mode for Legion series:
Press and hold Fn + Q to turn on the phone when it is off and enter the diagnostic interface.
Select Wireless Component Test for in-depth testing.
The exact procedure may vary depending on the computer brand and model.
Thanks again for your understanding, I really appreciate it!
I sincerely hope that the above information and programs will help you! Please feel free to contact me (Photos related to the question would be great!).
I look forward to hearing back from you.
Best Regards
Arthur Sheng | Microsoft Community Support Specialist
