Things I Learned: Installing Serial Port Drivers on Windows 11 for Halikey

While Halikey on my Windows 10 box just worked, my Windows 11 machine had forgotten that serial ports had ever existed.There's a fix for this online, but it took me a bit longer than I thought to go through the driver update process. The steps were outlined here. (I used the answer from RobinsonSilvestre. I can't find a way to link to that exact response. Just in case, I've also copied the response below.)

The very first step was to find my Halikey in the Windows Device Manager. For me, it appeared under "Other devices". I figured this out by counting the number of entries in "Other devices" before and after I plugged in my Halikey. With my Halikey attached to a USB-C drive, my count of rows went up by one. I determined which entry was new, (I can't remember the name, or I'd document it here), I figured out which device to right click on to update the driver for the Halikey so I could follow the above linked procedure.

Next, I found the driver for the chip used by my Halikey. I used the one labeled CDM-v2.12.36.4-WHQL-Certified. This is a link to the download. The driver download page has drivers for a variety of PC operating systems and processors.

The steps in the process linked were easy enough to follow. Just be careful not to step ahead. Do every step. My Halikey now shows up under "Ports (COM & LPT)" as "USB Serial Port (COM6) and works!

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Solution linked to above:

This problem is caused when the driver is not installed, is installed in the wrong version, or is not compatible with Windows 11. You will need to check the manufacturer's website for the latest version and install the driver manually.

Once you downloaded the latest driver version:

1-Open the Device Manager

2-Connect the USB Serial Port

3-Click to expand the Other Devices, then check if it is recognized as an unknown device, or click on "Universal Serial Bus Controller" and check if it is recognized

4-Right-click on the USB Serial Port or unknown device and select Update driver

5-Click on the option "Browse my computer for drivers"

6-Click on the option "Let me pick from a list of available drivers on my computer"

7-Select "Multi-port serial ports" from the list and click on next

8-Click on "Have disk..." in the bottom right corner

9-Click on Browse and select the driver that you downloaded and follow the instructions

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