Installed 1.7 for testing and ....

I updated my mobile workstation (Precision 3591, Ultra 9 185h, Nvidia RTX 2000 Ada, Win 11 Pro) from HF 0.9 to 1.7. Don't experience any crashes and issue the other members describe, however, in my case new Installation Manager is missing. Its simply not there at all. Is that something that is only available on Windows 10 systems???