I am afraid the registry key you are referring to already exists, so that is not the cause....
Regarding the Office, it's not the standard Office 365 x64 (2013) as on the time I have received the approval the 64 bit flavor was not a standard, so it's a Retail kit of Office 2013. The same Office kit is used on Win 7 x64 and BO Analysis 2.2 SP2 is installing ok and also working ok, but on Windows 10 x64 Enterprise is not even installing (Office is not detected).
PS: My Office is being manually kept up-to-date (as you can see below).