Ports (COM and LTE) not showing in Device Manager in windows 10

Sep 26, 2017
Reaction score
It depends a lot upon the type and age of computer, used to be COM ports were 9-pin or 25-pin D-Sub connections for modems, mice, etc. or a 25-pin LPT/PRN connection for the printer, not seen on newer computers for awhile now. The 25-pin ports were male and the printer was female. The VGA display port was 15-pin and still in use.

A USB port can be designated as a COM port by a printer install such as HP.

One of mine:
Last edited:
Sep 7, 2021
Reaction score
this really helps, deserve 10000000 likes
I did this (had to click on View for it to show as were in Hidden) but my printer still refuses to work for me.
Tried plugging in the cable instead of the wireless but still no luck.
Brand new laptop - the printer worked initially then since it needed to install some updates it just fights with me.

All I need is for the printer (also brand new) to print for me!

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question