How to Fix Windows Update 800b0109 Error

Error 800b0109 is a Windows update error. It occurs when a user tries to update or upgrade Windows applications. It sometimes also occurs when system files are unable to launch themselves. The Microsoft Health and podcast apps are two of the most common applications that trigger this error message when a user tries to update them.

The Windows Update error code 800b0109 usually display below message that says:

Error(S) found: Code 800B0109 Windows Update encountered an unknown error.”

There may be various reasons behind the occurrence of this error:

  1. Corrupt system disks or files
  2. Virus attack on the system
  3. Corrupt Windows update components
  4. Incomplete installation of Windows update components

How to Fix Windows Update 800b0109 Error

Usually, Windows Update 800b0109 Error occurs when the update components are damaged or upgrade Windows or infected by a virus.

Check Disk Utility

As I mentioned above that due to damage the Windows Update 800B0109 Error may appear due to damaged Update files, thus we will have to run SFC scan using Command Prompt to repair the file.

Here is the video if you don’t want to read all the steps:

1) Go to Start and search for Command Prompt

2) Right-click on it and select Run as administrator

Command prompt run as administrator

3) Click on Yes in the “User Account Control” dialogue box

4) Type chkdsk C: /f and press the Enter key

chkdsk command line

5) Restart your system once the process is finished.

Run System File Checker

1) Go to Start and type cmd

2) Right-click on Command Prompt and select Run as administrator

3) Select Yes in the “User Account Control” dialogue box

4) Type sfc/scannow in the command prompt window and press the Enter key

5)  Once scanning and automatic system repairing is finished, close the window and restart the system.

Booting System in Safe Mode

There are chances to fix the Windows Update 800B0109 Error by restarting our PC in Safe Mode. This will pause all the unnecessary application and let your system run smoothly:

1) Click on Start and select the power icon

2) Press and hold the shift button and click on Restart simultaneously

3) Select Troubleshoot and then click on Advanced options

4) Select Startup Settings and click on Restart

5) Press F4. Windows will automatically restart in safe mode.

Run System Restore

This is the easiest way to fix 800b0109 Error but should be done at last if above method not work:

1) Press Windows +

2) Type rstrui.exe and click on OK


3) Click on Next

4) Select a Restore point from a former time or date and click on Next.

5) Click on Finish

Confirm Your Restore Point

6) Select Yes in the warning box.

7) Restart your computer.

Run Antivirus

Sometimes if the Windows system is infected by malware of a virus then it changes the Windows update components and won’t allow it to download the latest patch. Thus it is important to run a complete system scan using a good Antivirus like Kaspersky.

Running a complete system scan may take a few hours depending on how much data is stored on your hard-drives.

Reset this PC

This is another way to fix Error 800b0109 on your Windows 10, follow the below method:

1) Click on Windows logo and type Reset this PC

2) Click on it

Reset this pc on Windows 10

3) Click on Get started button

Recovery reset this pc

4) Click on the first option that says Keep my files

Reset this pc option in Windows 10

5) Le the system to perform the operation and then restart your PC.

Now you can update your Windows without 800b0109 error.  I hope above mentioned method help you to get rid of this annoying issue, let me know if you still facing any problem.



Nikita area of expertise is Computer technology and Startups. Nikita's background as an Engineer gives her a nuanced perspective of Windows 10 OS.

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