How to Fix Window Update Error Code 0x800b0109?

Microsoft Office is the trusted software which has so many applications like MS Word, MS Excel, MS PowerPoint and MS Outlook etc. Every application has its own features. This software can be easily installed through It gives you user friendly interface and increases the productivity of the user. It is utilized in both homes and in businesses. It gives cloud storage so that user can store their personal document in cloud and can access their document anywhere anytime. It is suitable for Window OS, Mac, Laptop, Computer and Android Pones. It timely gives the updates to fix the patches in the software. Some users face Window update error like 0x800b0109. This error occurs when system files get corrupted. In this blog, you will read the solution of Window Update Error Code 0x800b0109.

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Methods to Fix Window Update Error Code 0x800b0109:

  • Disable Proxy Setting:

For this, first you have to press Win+R key to open the Run dialog box. Then you have to type inetcpl.cpl in the box and click on Enter Key. Now you have to go to the Connections tab and then press the LAN settings. Then just unmark the checkbox against “Use a proxy server for your LAN“. At the end, click on OK button. Now you can check the error is fixed or not.

  • Run Window Update Troubleshooter:

For this, just press Win+I key together just to start the Settings app. Then, you have to select Update and Security option. After this, you have to select the Troubleshoot option. Now go to the right side and click on Windows Update option. Then you have to press on “Run the Troubleshooter” button.

  • Run DSIM Tool:

First, just you have to type Command Prompt in the search field or press Win+S key together and click on“Run as Administrator” option. Now type the following commands and press enter key after each command.

dism.exe /online /cleanup-image /scanhealth

dism.exe /online /cleanup-image /restorehealth

After this, you have to close the current console.

  • Run the Commands Using Notepad:

First you have to right-click anywhere on the desktop and then just select New option. After this, select Text Document. Now, you have to double-click on the new created document and then you have to Copy/paste the below texts.

net stop wuauserv

cd %systemroot%\SoftwareDistribution

ren Download Download.old

net start wuauserv

net stop bits

net start bits

net stop cryptsvc

cd %systemroot%\system32

ren catroot2 catroot2old

net start cryptsvc

After this, go to the File menu, and just select the Save As option. Now in the window, you have to type Repair.bat which is under Filename. Then just select All Files in the Save as type box. Now you have to select the desired location and press the Save button. At this point, just close this document. Just visit to the location where you have saved the batch file. Now you have to right-click on the Repair.bat file and you have to “Run as Administrator”.

  • Use Registry Editor:

For this, just press Win+X key together to open the Power Menu. And then select the Run dialog box and just type regedit and press the Enter key. Now it will ask to confirm, click on Yes button. In the window, go to the following path- sources

HKEY_Local_Machine/Software/Policies/Microsoft/Windows/Windows Update

After this, just copy/paste the entire path in the address bar and press Enter Key. Now you have to delete the Windows Update entry. Now, you have to press Win+R altogether to open the Run dialog box and then type services.msc and hit Enter key. Just locate and stop Background Intelligent Transfer and Windows Update services. When both the services are stopped, you have to right-click on each one of them and then you have to select the Start option. At last, close the Window and then restart your system.

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This method will fix the issue, but if you are still facing error then you can call the expert of MS Office. For details, you can visit to the site via

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