
How to Fix Windows Defender Firewall Blocked App
You try to open an app, but it either won't start or can't connect to the internet. A common caus...
Software troubleshooting desk

You try to open an app, but it either won't start or can't connect to the internet. A common caus...

If you're getting errors about a version mismatch when opening shared mailboxes, calendars, or ad...

If your Command Prompt window suddenly shows odd colors, tiny text, or strange cursor behavior, i...

If you see a message in Windows Security that says something like "Security module not found" or ...

After changing networks—moving offices, switching ISPs, or reconfiguring a VPN—you might see a Wi...

You're trying to download or update an app from the Microsoft Store, and you get a message about ...