Windows has restore points built-in, so if updates are all you're worried about and an update does stop your software working you can simply rollback. You shouldn't need separate software for that.
I appreciate some might feel what I did was overkill, but I did what I did to cover almost all eventualities - apart from my motherboard dying... and I agree - it was over due - Cakewalk's demise was a wake-up call to ensure my backups were up to date.
Making complete disk backups gives me the ability to restore everything onto a new disk if my existing disks get corrupted or die. It doesn't matter if Cakewalk's servers are down, because everything is already installed and authorised. Clonezilla also gives you the opportunity to restore the disk's unique identifier onto a new disk, which also means other software won't know you've changed hard disks.
Downloading all the installers is fine, but installing Cakewalk is easy (assuming the servers are up and you can authorise). Installing all your plugins takes forever and is a real pain.
I don't like ignoring windows updates, so the separate Windows 7 install means I can simply swap to that as my main Sonar OS if need be in the future. Most of the effort above was getting Windows 7 installed and getting it to match my Windows 10 install. I could have made it easier, but I wanted to share my SONGS & DATA disks - hence the convoluted steps.
I'm not suggesting everyone copies all of the steps I took, as some steps will be of less use to some people than others.
Like I said, I hope some of you find some useful tips there.
Mark.