With Windows 10, I reinstalled the OS once due to OS corruption probably made by RollBack Rx Pro. I wasn't educated enough that time about using RollBack Rx.
On my laptop, uninstallation of RollBack Rx isn't "quick... procedure". I have to wait for around 30 minutes before it prompts me that it is uninstalled. I wish it could uninstall faster, just like how fast it is when doing a rollback, which is almost as quick as a system restart.
30 mins ? I would report on HDS support forum. That isn't correct behavior...
Ask @Umbra - he uses RB Rx on HDD. I use SSD.