Hi Dirk,
Thank you for posting your question here at Microsoft Q&A! Let me guide you on how to install ACCS up Hub 4-in-1 HUB.
To set up your ACCS 4‑in‑1 hub on Windows 11, just plug the hub into a USB or USB‑C port on your PC and connect its power adapter if it has one, then wait a few seconds because Windows 11 will automatically detect it with no drivers needed. Open Settings then Bluetooth and devices then Devices to check if the hub or the devices connected to it appear, and if not, use Add device to help Windows detect it. If you connect something like a USB drive, open File Explorer and check under This PC to confirm it’s working. If nothing is recognized, try a different USB port or temporarily unplug other hubs, since Microsoft notes this usually points to the port or the hub hardware itself.
Let me know how this goes.
Regards,
Angelique P.