I found the manualhttps://support.oculus.com/help/oculus/1676275305961321/
to install the oculus software on a other drive. However "OculusSetup /drive:D" is not working, the setup starts for a moment and ends then without any error message. Running "OculusSetup" without any parameter is working, however still havin the software installed in the program folder on the C: drive!
Did anybody experienced the same effect and has a solution for that issue?
Best regards & thank you