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Fix PowerShell Service Unavailable Error on Windows

You're running a PowerShell command and get a red error: "Service unavailable". ...

Fix Microsoft Teams Connection Refused by Proxy Server

When Microsoft Teams shows a 'connection refused' error and mentions a proxy server, it usually m...

Fix Windows Defender Update Error 0x80070643

You try to update Windows Defender and see error 0x80070643. This usually means a Windows Update ...

Fix 'ffmpeg command not found' in PHP exec()