
Windows Security 404 Not Found: Setup and Fix Guide
When you open Windows Security (formerly Windows Defender) and see a blank page or a '404 Not Fou...
Software troubleshooting desk

When you open Windows Security (formerly Windows Defender) and see a blank page or a '404 Not Fou...

If you see 'Your profile could not be opened correctly' or 'Invalid profile configuration' when l...

When you launch Google Chrome and see the error message "The profile module cannot be found" or "...

If you notice that cmd.exe is using a lot of memory—sometimes hundreds of megabytes—it's usually ...

You set up a backup task in Windows Task Scheduler, but it never runs. The status says "Ready" or...

When you open Windows Security (formerly Windows Defender Security Center) and see a 504 ...