Increasing Number Of Com Ports Used

Oct 20, 2015

I am trying to install a generic text printer onto a windows 10 tablet but when the printer is paired through Bluetooth the Com port it is using is way beyond the normal Com port numbers.

After the printer is paired I would normally add a local/networked printer and select the same port as the Bluetooth device, when this is in the range 1-4 that is fine, but (due to repeated attempts) it is now up at Com19

I have looked online and found articles for Windows7 talking about uninstalling the un-used Com ports (that windows thinks are being used) but I'm not sure how to reach the same areas in Windows 10

I have so far tried the following:

1. turning it off and on again
2. using device manager, view ports, under the view menu setting 'Show hidden devices' but I can only see the two latest ports (19/20)
3. I have looked at the properties of port 19 and tried to change the port number, but this is where it says all ports from 1-18 are in use.
4. I have tried to follow win7 instructions that directed my to advanced system properties and the environmental variables/system variables - this section I can't find in windows 10 ....

The only other option seems to be hacking the registry, which I will now look at....

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