Error 0x80070026 occurs when you Update Windows or Restore Windows to an older version on your computer. When error 0x80070026 appears, all tasks fail and cannot be repeated.

1. Error 0x80070026 on Windows PC
Error code 0x80070026 primarily appears during Windows Update and Windows Restore processes, and it's relatively common on Windows 10/11 computers. If you encounter error 0x80070026, you can utilize various methods to quickly address it on your computer.
The main cause of error 0x80070026 is often attributed to outdated update files on the computer that haven't been cleaned up, leading to direct conflicts with the current update version. Therefore, simply cleaning up the storage system of old update versions and reusing Windows Update/Restore will lead to success.
2. Fixing Error 0x80070026 on Windows Update or Windows Restore
Fixing error 0x80070026 using the computer scan command in Command Prompt
The data scanning command on the computer through Command Prompt will help you address various different errors, particularly those related to system data.
Step 1: Open the Start Menu, type Command Prompt, and select Run as administrator.

Step 2: Then, input the command below and press Enter to execute it. When the command runs, you'll need to wait for 3-5 minutes to scan the entire system data and address any errors.
Sfc /scannow

Fix error 0x80070026 by deleting data in SoftwareDistribution
SoftwareDistribution stores a significant amount of data related to Windows updates, and this is also the main cause of error 0x80070026 on the computer.
Step 1: Open This PC and copy the link below to paste it into the navigation bar. This link will take you to the SoftwareDistribution folder on your computer.
C:\Windows\SoftwareDistribution

Step 2: Then, press Ctrl + A to select all and choose Delete to remove all data within SoftwareDistribution.
Finally, simply restart your computer and check Windows Update/Restore again to verify the error.

Fix error 0x80070026 by resetting the catroot2 folder on your computer.
The catroot2 folder on the computer contains a lot of data related to Windows Update/Restore, and they are no exception as they are the cause of the error.
Step 1: Open the Start Menu, type Cmd, and select Run as the administrator to open it under Admin rights.

Step 2: Then, input the following commands one by one and press Enter to initiate the execution.
net stop cryptsvc

Next, copy the command below and paste it into the system to execute.
md %systemroot%\system32\catroot2.old

This command will copy all data from catroot2 and restore them to default settings.
xcopy %systemroot%\system32\catroot2 %systemroot%\system32\catroot2.old /s

Finally, you just need to use this command to restart everything, and you're done.
net start cryptsvc

Fixing Error 0x80070026 with Troubleshooter
The Troubleshooter provided on your computer can fix various different errors, including those related to Windows Update.
Step 1: Open the Start Menu and type Settings to access the settings on your Windows computer.

Step 2: Then, select the Update & Security tab to view features related to security and updates.

Step 3: Next, select the Troubleshoot (1) tab and choose Additional troubleshooters (2) to add more troubleshooting packs.

Step 4: Finally, simply select Run the troubleshooter under the Windows Update section to activate the troubleshooting pack on Windows.

In this article, Software Tricks has guided you on how to fix error 0x80070026 on Windows 10/11 computers. Good luck to you all!