I'm told you can but you need to get a new license number. I've been trying for about a week and Lavasoft still hasn't delivered. I can't post in the Support Forum because records now don't recognize me as a registered owner of Pro even though I'm paid up through next summer.
I emailed support and got an answer requesting addtional information (the hardware profile on the new machine). I replied to the support email as they requested and got a message that says we no longer use email for support. They also told me to uninstall from the old computer, which I did.
Major limbo. Using a trial version now but seem to be locked out of support.