
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...

You install or update a Chrome extension, click its icon, and nothing happens—or you see a vague ...

You try to run Windows Update and get an error like 0x80070002 or a message that the...

After a Windows update, you might see an activation error or a watermark saying your copy isn't g...

You double-click Command Prompt (cmd.exe) and a black window flashes on screen—then disappears. T...

You try to unlock a BitLocker drive or change encryption settings and get an error like "invalid ...