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How to Fix 0x800736b3?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

0x800736b3 is a Windows Update error code. This error code happens when the Windows Update system is unable to access or download the required files from the Microsoft servers. This can happen due to a number of reasons, such as a temporary issue with the Microsoft servers, a problem with your Internet connection, or a firewall setting that is preventing Windows Update from connecting to the Microsoft servers.

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1. Restart your computer and try again

  1. If your computer is on, turn it off.

  2. Unplug all of your devices from your computer.

  3. Hold down the power button on your computer for about 10 seconds to power it off.

  4. After your computer has powered off, plug in your devices one at a time and turn on your computer.

  5. If you still experience the 0x800736b3 error, try restarting your computer in Safe Mode. To do this, follow these steps:

  6. On your computer, open the Start menu.

  7. Click on Control Panel.

  8. Double-click on System and Security.

  9. Click on Safe Mode.

  10. Follow the on-screen instructions.

2. Run the Windows Update Troubleshooter and see if it can fix the issue

  1. Open the Windows Update Troubleshooter by clicking on the Start button and typing “Windows Update” in the search bar.
  2. Click on the “Troubleshoot problems with Windows Update” option.
  3. On the “Windows Update Troubleshooter” window, click on the “Next” button.
  4. On the “Windows Update Troubleshooter” window, click on the “Advanced” button.
  5. On the “Advanced” window, click on the “Troubleshoot problems with Windows Update” option.
  6. On the “Windows Update Troubleshooter” window, click on the “Next” button.
  7. On the “Windows Update Troubleshooter” window, click on the “Check for updates” button.
  8. On the “Windows Update Troubleshooter” window, click on the “Update” button.
  9. On the “Windows Update Troubleshooter” window, click on the “Repair” button.
  10. On the “Windows Update Troubleshooter” window, click on the “Finish” button.

3. Try installing the updates in Safe Mode

  1. Boot your computer in Safe Mode by pressing the F8 key when you start it up.
  2. When the Safe Mode screen pops up, press the ESC key to get back to the main screen.
  3. Select the Update Manager icon from the desktop.
  4. Click on the Check for Updates button.
  5. If there are any updates available, you will see a message saying that there are updates available.
  6. Click on the Updates button to start the installation process.
  7. You will be prompted to choose which updates to install.
  8. Click on the Accept button to install the updates.
  9. After the updates have been installed, restart your computer.

If the answers above didn't work then you should also try:

  1. Temporarily disable your antivirus software and try installing the updates again.
  2. Clear the Software Distribution folder and try installing the updates again.
  3. Reset the Windows Update Components.
  4. Try installing the updates from Microsoft's Update Catalog.
  5. Perform a clean boot and try installing the updates again.
  6. Contact Microsoft support.