[Fixed] Windows Update Error 800b0100 – cannot install updates

Maybe while reinstalling or updating Windows, you have encountered the error having code 800B0100. This happens when the updating screen suddenly freezes, and then the PC responds with the error code.

This error occurs if:

The Windows system has incomplete or corrupted files.

Corrupt Windows registry key.

A virus is affecting Windows system files.

Solutions for Windows Updating Error 800b0100

Solution 1: Repairing Registry Entry

Use the Auslogics Registry Cleaner software, which will check and correct any errors related to the registry causing the 800b0100 error. Follow these steps:

Download and install Auslogics Registry Cleaner.

Run the software to check for missing files and invalid registry entries.

Create an automatic backup using the software.

This tool also boosts your PC’s speed and performance.

Solution 2: Using System Readiness Tools

Microsoft offers several system readiness tools designed to check for and resolve Windows update errors. To use these tools:

Download the appropriate tool for your version of Windows from the Microsoft website.

Run the tool and patiently wait as it completes the process, which may take some time.

Solution 3: Disabling Windows Firewall

Sometimes, disabling the Windows Firewall can help resolve the error 800b0100. Follow these steps:

Open the Control Panel and navigate to “System and Security.”

Select “Windows Defender Firewall” and click “Turn Windows Defender Firewall on or off.”

Choose “Turn off Windows Defender Firewall” for both private and public networks.

Remember to re-enable the firewall once the issue is resolved.

Solution 4: Having Updated Drivers

Outdated drivers can cause the 800b0100 error. To update drivers:

Visit your laptop’s or PC’s manufacturer’s website to download the latest drivers.

Alternatively, use a tool like Auslogics Driver Updater to find and install the necessary drivers.

Solution 5: Deleting Junk Files

The accumulation of junk and unnecessary files can cause update failures. Run a disk cleanup weekly to prevent such errors:

Press “Win + R,” type cleanmgr, and press Enter.

Select the drive to clean and follow the prompts.

In Conclusion

If you are still unable to resolve 800b0100, we recommend chatting with our assured experts for the best solutions. We guarantee quality service and value for your money.