Can't bring up Serial Monitor: Err --> Board at COM 3 not available

I would love any ideas you all have on how to fix this.

So far I have tried changing the Port from Tools -> Port but the port option is greyed out and unclickable.

Also I have gone through Device Manager -> Ports (COM & LTP) -> Arduino UNO (COM3) -> Port Settings -> Advanced but the port is already set as Port 3 ?!

I don't know where to go from here. This is not the end of the world but does limit my debugging.

Windows 10 64bit 10.0 Build 14393

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