I have Windows 10 on automatic updates and update SONAR regularly. Imaging one's C: drive is a necessary part of using computers. The rollback option in SONAR works just fine, and imaging gets Windows back to where it was is there's some truly showstopping issue (which hasn't happened to me yet). 
 
In my experience, any inconveniences associated with an update (Windows or SONAR) are outweighed by the advantages. I have yet to find a situation where reverting was more advantageous that just coping with/working around/ignoring any issue that arose.
 
The flip side is there are very valid reasons to "freeze" a system in a working state. You simply have to decide which tradeoff (known stability vs. potential improvements) is the one you want to make. 
 
Zooming out, computers are machines and they need to be maintained. Maintenance time has to be factored into the music-making process, whether it's changing strings, tuning a piano, testing RAM, backing up, or updating software. Maintenance with computer-based recording is much less than the maintenance required with tape-based recording so at least we've improved in that respect.
 
 
 
 

MarioD
Does the latest update require the Win 10 updates?

I updated to the latest Sonar update yesterday, had to connect to the WEB. At the same time that I updated Sonar, MS decided to sneak all the latest updates for Win 10, even though I had scheduled it for 2 AM. (I shut down the computer typically at 6:30PM. So far it doesn't look like I need to buy that bottle (or your Buds!). Seems to work okay and like some of the new features.
 
Walt

I am not sure it is worth the effort to avoid Windows updates in most cases, but I am far from convinced that they are useful in every case. There is a pretty good discussion of the types of things you get with updates here:
http://www.zdnet.com/article/faq-how-to-manage-windows-10-updates/
 
For a general purpose computer, new features may well be worth the potential problems, but for a DAW running only a limited number of programs that depend on a relatively small number of core features to run, the argument may well go the other way. These core features are rarely changed (the recent timing issue that screwed with some Cakewalk plugins in some systems being an exception) and when changed rarely result in significant improvement in the performance of software that was previously working. The addition of new features in older software a la SONAR continuous development complicates the issue, since the developer may well decide to leverage some new feature of his own with a new Windows or C++ feature so that an update of the Microsoft code is necessary.
 
Security updates are only of real value if your machine is exposed to attack by being not being fully insulated from any input, but you need to remember that a memory stick, CD or emailed file can make your machine vulnerable, even if it is not used for web surfing.