Solution that worked for me (win 10 64bit):
Uninstall elicenser and restart computer. Go to program files x86, locate eLicenser folder and delete it. Use Ccleaner software, go to Registry tab and scan for issues, let it fix/delete them.
NOTE: I didnt use USB stick for this, I got my cubase download access code on paper, registered it on their site, downloaded and installed cubase, checked back on my website profile and saw “Activation status:Not yet activated” then I used https://www.steinberg.net/en/company/technologies/elicenser.html to download eLicenser and then put the activation code(which I got on the page where I submitted the download access code) in the eLicenser software to complete license registration.
Hope this helps someone.