So I installed CloudDrive, then Scanner, then messed with both (both worked fine), then uninstalled CloudDrive, tried to uninstall Scanner, and got this
c:\Program Files\StableBit\CloudDrive\Data\ReadModifyWriteRecovery\ still have some *.dat files (will remove manually)
c:\Program Files (x86)\StableBit\Scanner\* have binaries in there (so it's not uninstalled indeed)