Hi,
I've found various topics to this problem, not really having the operationnal response.
I've just installed Arc 2.5 on my Win10 last updates. All are bought and legal softwares.
Unfortunnalty, when I start my DAW (Cubases 8.5 - 32 bi version), I get the thrilling "Registry Error". "Please ensure this produtc has been installed properly".
And I can answer this last question: "Yes, it's installed properly".
Product is registered with autorization manager.
But when run it under the 64 bit version of Cubase 8.5, It works!!!
I try to run my DAW it as Admin, no effect.
Please help!