
Windows Activation Service Unavailable on New Computer
You just set up a new computer, but when you try to activate Windows, you see an error that the a...
Software troubleshooting desk

You just set up a new computer, but when you try to activate Windows, you see an error that the a...

When running Windows Update, you might see an error message like "404 Not Found" or code 0x802440...

You try to activate Windows, but the setup fails with a message about a dependency conflict. This...

Windows Security backup (part of Windows Backup or File History) may stop working for several rea...

You may see "permission denied" when Windows activation attempts to auto-start, often after a sys...

If you click the Microsoft Store icon and nothing happens—no window, no error—you're not alone. T...