Error 0x80070015 for Windows 10 Update, Microsoft Store, Windows Defender
Windows error 0x80070015 can occur if the operation has not been initialized correctly. This is usually an internal programming error, and there is nothing much that an end-user can do. Nevertheless, since this error is seen when running Windows Update, Windows Defender or Microsoft Store, or during Windows installation, we suggest that you undertake the following operations.
Fix error 0x80070015 on Windows 10
Before you begin, Restart the computer and try again and see if that helps. If not, then proceed with the respective fixes for Microsoft Store, Windows Update, or Windows Defender :
Run Windows Update Troubleshooter.
Manually reset Windows Update components.
Kill the processes related to PowerISO.
Reregister Microsoft Store apps
Reset the Microsoft Store.
Remove any third party antivirus installed.
1] Windows Updates
[i] Run Windows Update troubleshooter
Use the Windows Update Troubleshooter or Microsoft’s Online Windows Update Troubleshooter to detect and fix any conflicts for Windows Updates automatically.
[ii] Manually reset Windows Update files & folders
You need to delete the contents of the Software Distribution folder & reset the Coatroom folder to fix your issues. They contain some temporary system files that are responsible for applying updates to a computer. They include data that support Windows Updates as well as installers for new components.
You may also reset Windows Update components and the Windows Update Agent manually.
[i] Kill the processes related to PowerISO
Open the Windows Task Manager. Select More details.
Look for each process for the PowerISO software.
Right click on it and select End process tree.
[ii] Reregister Microsoft Store apps
Run the following command in an elevated PowerShell window to reregister Microsoft Store apps:
powershell -ExecutionPolicy Unrestricted Add-AppxPackage -DisableDevelopmentMode -Register $Env:SystemRoot\WinStore\AppxManifest.xml
Restart your PC and check.
[iii] Reset the Microsoft Store
Reset the Microsoft Store by using the wsreset command. Make sure to execute this on PowerShell or Command Prompt as an Administrator. If not that, you could reset the Microsoft Store app from the Settings app.
3] Windows Defender
[i] Removal of any third party antivirus installed
You can try to uninstall AVG Antivirus or any other third party antivirus installed on your computer. This is because these installations of third-party antivirus can often interrupt the scanning process for Windows Defender. The most famous culprits, in this case, are the antiviruses by Norton and McAfee.