KB3120677 and KB3103688 in Windows 10, Error 0x800736b3

If you are facing the error code 0x800736b3 while trying to install KB3120677 and KB3103688 updates in Windows 10, then you are not alone. This error code usually occurs when the Windows operating system is unable to find or access the required files for the update. However, there are several ways to fix this issue and successfully install the updates.

Here are some solutions that you can try:

1. Run the Windows Update Troubleshooter: This is a built-in tool in Windows 10 that can help you identify and fix issues related to Windows updates. To run the troubleshooter, go to Settings > Update & Security > Troubleshoot > Windows Update > Run the troubleshooter.

2. Reset the Windows Update components: Sometimes, the Windows Update components can become corrupted, which can cause issues with installing updates. To reset the components, you need to run a series of commands in the Command Prompt. Open the Command Prompt as an administrator and type the following commands one by one:

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:WindowsSoftwareDistribution SoftwareDistribution.old
ren C:WindowsSystem32catroot2 catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver

3. Manually download and install the updates: If the above solutions do not work, you can try downloading the updates manually from the Microsoft Update Catalog website and install them manually. To do this, you need to know the KB number of the update you want to install. Once you have downloaded the update, double-click on the downloaded file to install it.

In conclusion, the error code 0x800736b3 can be frustrating, but there are several ways to fix it. You can try running the Windows Update Troubleshooter, resetting the Windows Update components, or manually downloading and installing the updates. If none of these solutions work, you may need to seek further assistance from Microsoft support.


In conclusion, I hope that the solutions provided were helpful in resolving the error code 0x800736b3 while installing KB3120677 and KB3103688 updates in Windows 10. If you continue to face any issues, do not hesitate to seek further assistance from Microsoft support. Keep your system updated and running smoothly!

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