I had a similar problem; not sure if it’s the same. Linking to the post that helped me solve my issue. Turns out that deleting Roon may not get rid of all of the associated files. Once I deleted the folder ~/Library/Roon then I was able to get Roon working again. Note though that deleting this folder will also delete all of your settings from your prior install.
I know that you are on a Windows machine and not Mac but the Roon folder is probably there in Windows too.