No writable WD SmartWare partition found

I’ve updated both, the drives firmware and smartware to the latest versions:

  • smartware: 1.4.3.4

  • firmware: MyBookLive 01.03.03

It does still not work on this one PC. I’ve de-installed smartware several times now and re-installed it, tried with the original supplied version (which worked 1x) and with the latest version. Disabling the firewall does not change anything (the status displayed in the windows taskbar is working with and without firewall). Rebooting the MyBookLive and even a factory reset does also not change anything. I have no idea what to try any more…