Window Update Error Code 800b0100
                     Window Update Error Code 800b0100
Microsoft Office is the trusted software used in all the 
organizations. It is developed by Microsoft for home and 
business purpose. You can install this trusted software 
through www.office.com/setup Activate. It offers user 
friendly interface but some users face the Window 
Update error code 800b0100. 
Fix Window Update Error Code 800b0100:
1. Run Windows Update Troubleshooter:
For this, you have to press Win + I to open Settings. Then 
you have to Choose Update and Security option. After 
this, just click on Troubleshoot from the left side. On the 
right side, you have to select Windows Update and then 
click on Run the troubleshooter. Follow all the 
instructions to complete the process. Check the error is 
solved or not.
2. Use System Update Readiness Tool:
First you have to download System Update Readiness 
tool by going to the official website of Microsoft i.e. 
office.com/setup. Now, follow all the instructions to 
install it. In the Windows Update Standalone Installer 
window, just you have to click on Yes option. Once the 
System Update Readiness tool is installed, it will scan 
your PC. After this, just click on Close.
3: Install Windows Update Manually:
For this, you have to search for Microsoft Update 
Catalog. Then enter the update number which you want 
to download and then press Enter key. Now select the 
update according to your operating system. Then just 
click on Download button to download the update. Just 
click on Browse to choose a location, and then just click 
on Continue to save it. After this, just click on Close 
option. Now open the update package and double-click 
on it to install the update.
4: Disable Antivirus Software or Windows Firewall:
First just press Win + R to open Run window. Then just 
enter control panel in the box and then you have to click 
on OK button. In the pop-up window, you have to select 
System and Security. After this, just click on Windows 
Firewall. Now click on Turn Windows Firewall on or off 
option. Here you have to select Turn off Windows 
Defender Firewall and then click OK button.
5: Delete or Rename the Software Distribution Folder:
Stop Windows Update Service:
To modify Software Distribution folder, you have to 
disable Windows Update service. You have to enter 
services.msc in Run window and then just press Enter 
key. In the pop-up Services window, you have to right-
click on Windows Update and then just select Stop 
option from menu. After this, you should exit Services 
and then just delete/rename the folder.
 Delete/Rename the Software Distribution Folder
For this, open File Explorer and go to C:\Windows folder 
and locate Software Distribution folder and then you 
have to delete it, or rename it. 
6: Run System File Checker:
For this, you have to click on Start menu. Then you have 
to type cmd in the search box. After this, right-click 
Command Prompt and then just choose Run as 
administrator. Now you have to enter sfc /scannow and 
then press Enter key. It will scan the system for file 
issues. Wait for some time and then exit Command 
Prompt. At the end, restart the computer. 
7: Update Your Drivers:
For this, go to Control Panel and then select Hardware 
and Sound option. After this, choose Device Manager. 
Then you have to double-click a category to expand it. 
Now, right-click a device and then select Update Driver 
Software. In the pop-up window, you have to click on 
Search for updated driver software. Then it will 
download and install the latest driver for your device. 
You have to follow the instructions to complete the 
process. Now restart your computer.
8. Re-register Wintrust.dll File:
For this, you have to run Command Prompt and then 
enter the commands one by one and press Enter key 
after each command.
regsvr32 wintrust.dll
net stop cryptsvc
ren %systemroot%\system32\catroot2 oldcatroot2
net start cryptsvc
After this, you can try updating your Windows and then 
just check if the issue has solved or not.
If you are still facing any problem then you can contact 
the customer care executive anytime. For information, 
you can go to the website of MS Office via 
office.com/setup 2016. 
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