microsoft / microsoft/Windows-driver-samples
Missing Communication Ports Option on Windows 11 ARM
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Since Dec 9, 2024.
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Description
### Steps to reproduce:
1. Open **Device Manager**.
2. Navigate to **Action > Add legacy hardware**.
3. Select **Install the hardware that I manually select from a list (Advanced)**.
4. Choose **Ports (COM & LPT)**.
### Expected behavior:
The **Communication Ports** option should be available to configure COM ports.
### Actual behavior:
The **Communication Ports** option is not displayed on Windows 11 ARM devices because the required drivers, **serial.sys** and **serenum.sys**, are missing from the **system32\drivers** directory.
### Question:
Is there any plan to include these drivers or provide a solution for enabling COM ports on Windows 11 ARM?
### Additional context:
Other people have also asked this question in the community: [I want to use legacy serial line to connect old devices](https://learn.microsoft.com/en-us/answers/questions/1495641/i-want-to-use-legacy-serial-line-to-connect-old-de), but there hasn't been any substantial response. It would be nice to have some acknowledgment from Microsoft that this discrepancy exists as a first step, before they can take further steps to fix it!
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