
Fix 'Windows Security App Not Installed' on Windows 10
You open the Start menu, search for Windows Security, and nothing shows up. Or you see a message ...

You open the Start menu, search for Windows Security, and nothing shows up. Or you see a message ...

After a Windows update, you might see an error like “Task Scheduler version mismatch” or tasks fa...

You open Microsoft Store or a Store app and see an error like 'module not found' or 'configuratio...

When you open Command Prompt and see a message about a version mismatch—or commands behave unexpe...

You may see a “version mismatch” or “configuration error” in Windows Security (formerly Windows D...

You log in to Windows, and immediately get a prompt to enter your Microsoft account password or P...