[Solved] Keyboard, Wi-Fi, and Bluetooth all gone after Windows 11 update? What to try

After updating to Windows 11, have you encountered serious problems, such as your keyboard not responding, or Wi-Fi or Bluetooth not connecting, even though it was working fine before?

Many people are left feeling lost and unable to do anything about their work or tasks. These issues can range from simple driver issues to complex underlying system issues.

In this article, we will organize the possible causes of keyboard, Wi-Fi, and Bluetooth connection problems that occur after updating to Windows 11, and provide detailed step-by-step instructions, from simple solutions that anyone can try, to professional system repairs, and even the ``last resort'' that many people tend to overlook.

Main reasons why peripheral devices become unusable after Windows Update

Why does an update trigger such a problem? First, let's understand the main possible causes and calmly grasp the situation.

Reason 1: Driver compatibility issues

This is the most common cause. When the OS specifications are changed by Windows Update, the existing device drivers (software that runs peripheral devices) will no longer be compatible with the new OS and will no longer function properly.

Reason 2: Corrupted Windows system files

During the update process, system files may become corrupted for some reason. If files necessary for the PC to function are corrupted, device recognition and communication functions may be affected.

Cause 3: Bug in the update program itself

This is the case when the update provided by Microsoft itself contains a bug that causes problems on certain hardware configurations, and in this case, many users tend to report similar symptoms.

There have been reports of this occurring after installing KB5063878, which was released on 2025/08/12.

Mouse and keyboard not responding in Windows Recovery Environment (WinRE)? The cause is KB5067039

Reason 4: [Unexpected blind spot] Incompatibility between BIOS/UEFI and OS

If the BIOS/UEFI (firmware installed on the motherboard), which controls the most basic functions of a PC, is outdated, it may not work properly with the latest Windows 11.

In particular, after major updates that include enhanced security, serious cases have been reported in which this incompatibility has caused fundamental functions such as keyboard input and wireless communication to stop working.

In overseas forums, there have been cases where this has helped resolve situations where ``nothing worked''.

Step 1: Basic troubleshooting to try first

Before resorting to professional solutions, try some basic, easy and risk-free solutions first, which may solve the problem.

1. Completely shut down and restart your PC

Try a "full shutdown" instead of a normal "restart".

1. Hold down the Shift key, click the power icon in the Start menu, and select Shut down.
2. Once your PC is completely powered off, unplug the power cable and leave it for a few minutes.
3. Reconnect the cable and power on the PC.

2. Standard Windows troubleshooting tools

Windows 11 has built-in tools to help you troubleshoot problems.

Please refer to the following page and try running the troubleshooting tool for the problem you want to solve.

Fix Windows 10/11 problems with the Troubleshooter

If there is no item that matches the problem you want to solve, try the methods on the next page.

Detect and resolve all your Win10/Win11 device and hardware issues

3. Check and update drivers in Device Manager

Check directly for driver issues.

1. Right-click the Start button and select Device Manager.
2. Check for items such as "Keyboard," "Network adapter," and "Bluetooth."
3. If any device has an exclamation mark or question mark, that's the problem.
   • The downward arrow means it is disabled.
4. Right-click the device and select Update Driver.
5. Select "Search automatically for drivers" and follow the on-screen instructions.

If no update is found, right-click the device and select "Uninstall device" (do not check "Attempt to remove the driver for this device"), then restart your PC. The driver will then be automatically reinstalled.

Step 2: Repair system files

If basic methods do not resolve the issue, the system files themselves may be corrupted.

Please refer to the following page to check and repair the system integrity using the command prompt.

Repairing system files in Win10/Win11 with "System File Checker"

Step 3: Advanced Solutions if That Still Doesn't Work

If System Repair doesn't fix the issue, we'll assume that the problem is likely with Windows Update itself and try a more direct approach.

1. Uninstall the problematic Windows Update

Try reverting to a state before the update was applied to see if that resolves the issue.

1.Windows Update screenand open "Update History".

2. Click "Uninstall updates" under "Related settings" at the bottom.

3. A list of installed updates will be displayed. Find the program that started with KB (e.g. KB5063878) that was installed just before the problem occurred, and click Uninstall.

4. After uninstalling, restart your PC and check if the issue has been resolved.

important point:

If uninstalling resolves the issue, then that update is most likely the cause.

However, since it contains security updates, it is not recommended to not apply it for a long period of time. It is wise to temporarily stop updating for 7 days and wait for Microsoft to release a fixed version during that time.

How to Pause Windows Update on Win10/Win11

2. Try System Restore

This is useful if you have created a restore point beforehand, and will return your entire PC to the state it was in before the problem occurred.

How to create, restore, and delete system restore points

Last resort: Update your BIOS/UEFI to fix the issue

If you have tried all the above methods and still have no improvement, you should suspect that your motherboard's BIOS/UEFI may be the cause.

Why is a BIOS update useful?

BIOS is the underlying program that manages all of your PC's hardware.

When Windows makes changes to the core parts of the OS in a major update, older BIOS may not be able to keep up with the changes, which can cause problems with communication with hardware (keyboards, Wi-Fi/Bluetooth chips, etc.).

*To "cause discrepancy" means that a discrepancy arises and things do not go smoothly.

There have been cases where updating the BIOS to the latest version improves compatibility with the OS and resolves previously unsolvable issues.

This is because PC manufacturers include fixes in BIOS updates to accommodate OS changes.

[Important] Things you must check before updating your BIOS

BIOS updates are a very powerful solution, but if you perform them incorrectly, there is a risk that your PC will no longer boot (become bricked). Please proceed with caution and at your own risk.

General BIOS Update Procedure

The procedure varies depending on the make and model, but the general steps are as follows:

1. Download the BIOS file:
   • Go to the support page of your motherboard manufacturer (ASUS, GIGABYTE, MSI, ASRock, etc.).
   • Search for your exact model number and download the latest BIOS file.
   • The downloaded file is in ZIP format (extension Since there are many ".zip" files,UnzipI will do it.
2. Preparing the USB flash drive:
   • Prepare a USB memory stick formatted in FAT32 format.
   • Copy the extracted BIOS file (with extension such as ".CAP" or ".ROM") to the root directory of the USB memory (the directory directly below it, not in a folder).
3. Booting to BIOS screen (UEFI):
   • Restart your PC and while the manufacturer's logo is displayed immediately after startup, press the "Delete" or "F2" key (see below) repeatedly to enter the BIOS screen.
4. Run the update tool:
   • On the BIOS screen, find an update tool called "EZ Flash," "Q-Flash," or "M-Flash" and launch it.
   • Once the tool recognizes the USB stick, select the BIOS file you copied.
5. Run and wait for the update:
   • A final confirmation message will appear to confirm whether the file is correct, so confirm and run it.
   • Do not turn off the PC or remove the USB memory during the update.
   • Once complete, your PC will automatically restart. It may restart multiple times, but this is normal.

Generally, after updating the BIOS, you will need to reset the settings (although this may happen automatically). This is explained on the manufacturer's website.

For example, in my environment, after updating the BIOS, follow the steps below.

1. Open the BIOS screen and note down the settings such as Secure Boot and CSM.
   • In my environment, "Secure Boot" must be enabled and "CSM" must be disabled in order to start Windows 11.
2. On the following screen, click "Restore UEFI BIOS defaults"
3. Save settings and reboot
4. Open the BIOS screen again and check the Secure Boot and CSM settings.
5. If the settings are different from those you noted down, return them to their original settings.
6. Save the settings and restart
7. Start Windows 11

Major motherboard manufacturer support pages:

• ASUS Support
• GIGABYTE Support
• MSI Support
• ASRock Support

Summary

There are several possible causes for the serious issue of keyboard, Wi-Fi, and Bluetooth not working after updating to Windows 11. The quickest way to resolve the issue is to try the solutions step by step, starting with the simplest one.

• See More First, try basic troubleshooting methods such as restarting the computer or using troubleshooting tools.
• See More Next, try repairing your system files.
• See More If that doesn't work, try uninstalling the problematic update to isolate the cause.
• Final means: When all else fails, updating the BIOS/UEFI may be the ultimate solution.

While updating the BIOS can be effective, it also carries risks. Before proceeding, be sure to back up your data, carefully read your PC manufacturer's instructions, and proceed with caution.

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