Question

I have  installed studio one to a computer that dosnt have windows 10 and activated it with my  code and it won't let me go into it , I now have a new laptop and installed  studio one but only let's me use demo mode and the code won't work again

Answer 1

That's weird, you should have up to five authorizations at once. Check your account for previous activations and remove them all. Write down the Activation Key shown in your account, delete the file "user.license" on your your current windows machine ( C:\ProgramData\PreSonus\Studio One 5), and try again. If it still fails create a support ticket.