Have you tried to de-install the software using Windows own software removal tool? Deleting the folder of the software and it´s content could be a solution as well. Some registry cleaners offer a software removal tool too...
In my personal opinion you can´t compare a 199 Euro DVS (Reloop Spin 2+) with a 499 Euro DVS (Serato Rane SL1) or 718 Euro DVS (Serato Rane SL3).
I am a long time Serato Scratch Live user and it´s a good choice you made BUT: at work I do a lot with Spin and I must say that for it´s price it´s a great DVS once you have it up & run. 2 different things, 2 different prices...