I create manual Windows restore points before installing new Sonar updates but I think the Sonar installers do as well. So if anyone got caught out unawares of this and want it gone they could check their auto restore points and do a system restore.
That won't (shouldn't) remove any newly written files (like audio tracks or new projects) but will (should) remove the Newburyport update and the LANDR app.
Then you just follow Bapu's advice to reinstall Newburyport with the LANDR thingie unchecked.
Registry cleaners such as CCleaner and RevoUninstaller should work too BUT unless configured/understood properly may not work completely and/or actually remove other items you don't WANT removed... thus screwing up your system. Great programs... but can be a little overzealous.
Fortunately those types of programs also provide an option to create a recovery point before they scrub your system. Problem is you may not notice a problem until much later thus potentially making those recovery points not so desirable (because maybe you've updated other stuff and don't want to go through the process of figuring it all out again) or you don't even KNOW why little weird things are happening just because the cleaner removed something useful months ago.
Just sayin'... reg cleaners are great but know what they are doing first. System Restore gets you back to a previous PROGRAM/Registry state immediately and easily (I put dates and details of what I installed when I create my manual restore points).
System Restore is not to be confused with a System "Image" which will remove any new files as well as programs (a proper snapshot).
Just some extra info for those not familiar with this crap and I described it poorly (I am not a tech). Do your own research before taking drastic measures on your system.
And, Baps... thank you for the thread/images.