Windows 10 USB / Serial Port Problem

I use USB relay boards (manufactured by Velleman) on our bespoke retail system and they install to a virtual COM port and have worked like a charm on various pcs / with Visual Basic / VBA for some years. I have these installed in 8 premises without a problem on Windows 7 & 8.1 machines.

The latest batch of PCs we've purchased are Windows 10 of course which didn't seem like a problem but now I've found that although the serial port shows in device manager as expected, and I can control the board as before, I cannot seem to get any input from the port. Normally when I press a button on the board, a data packet is received but now there is nothing. Without looking into the driver software, is there any Windows 10 reason anyone knows of which might block such input for example?

Any thoughts most welcome, thanks.
nigelr99Asked:
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John HurstConnect With a Mentor Business Consultant (Owner)Commented:
Serial port works fine on my home desktop machine (in and out).

1. Have you updated Windows 10 to 14393.82 to check (out today).

2. Have you asked Velleman Support for a driver? They have been good with Support for me (not this board though).
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bbaoConnect With a Mentor IT ConsultantCommented:
it sounds like a driver compatibility issue on W10.

did you try installing the drive in W7 or W8 compatible mode? just right-click the installer and change to the right Widnows version under Properties / Compatibility.
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nigelr99Author Commented:
Thanks for the answers - will be working on suggestions today and get back with results!
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John HurstBusiness Consultant (Owner)Commented:
What did Velleman support say about this?
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