How do I show all the ports in Device Manager?

How can I view all the Ports? I had been using Com3(up to yesterday) and Com6, but they have disappeared. Device Manager is only showing Com4 which Is in use by my laser machine. I need to find one for a CNC router. Any help will be greatly appreciated.

Duane

There should be a tab in device manager for the ports. often ports are shared so 1+3 are the same there must be free dma irqs

Hello @jayhawk714,

jayhawk714 said:

How can I view all the Ports?
Device Manager is only showing Com4 which Is in use by my laser machine.

In Device Manager, have you clicked View > Show Hidden Devices?

Also, have a look at this > DevManView v1.76 - Alternative to Device Manager of Windows

QUOTE from the NirSoft link above:

DevManView doesn't require any installation process or additional dll files. In order to start using it, simply run the executable file - DevManView.exe

I use it and it is excellent.

I hope this helps.

Samuria said:

There should be a tab in device manager for the ports. often ports are shared so 1+3 are the same there must be free dma irqs

Thanks I will check that out.