Boggin,
Sorry, I'm still on Windows 7. I have the Registry Backup element of the program set to create an automatic backup every day if I fire up the laptop, which works smoothly, and have the option ticked to create only one auto backup a day, so I don't create multiple backups per day unnecessarily. However, having that option ticked means that if you want to create a manual registry backup later that day, it won't do it unless you get rid of or move the auto backup for the day or temporarily toggle off the option to only create one auto backup per day. I have raised the issue but it's not been addressed. I realise the Registry Backup tool is not modified in WRAIO v4.0 but it would be nice to change this behaviour.
Pro fix,
I downloaded v 4.0 and installed over v3 Pro, then chose to upgrade to the v 4.0 Pro version, when I was taken through a payment process where I used PayPal to cough up 11 GBP plus VAT, which I was happy to do. During the process, there was some mention of 'modifying my product key to work with v 4.0' and then all was sunshine and light, with all features enabled.