mah8420 the revert route does indeed work and will stay that way unless updated. But it does seem to need a few restarts to fully clear its head and return to proper previous comment function.
ChromeRefugee My Office is on the Current channel. So far the revert to previous version is holding but there may come a point (as has happened in the past) when something in a Windows 10 update fiddles with something that Office is dependent on and I will start to get glitches. The previous time I had to revert, a Windows update eventually led to palm recognition/pen use being very clunky and I was forced to update Office to overcome it. The Regedit trick should work but tends to be more volatile in that other software appears to change keys or override their effect, or Office itself does for some reason. There are many dependencies between Office and other parts of Windows. With my pen problem after update, I noted that although the registry changes I made were still as I had set them, behaviour changed anyway.
MoMaier I totally agree, and you are entitled to rant. When you buy something you expect it to do what it says and not morph into something else without warning. There was a reason I bought 365 service over just using a cracked download or other nonlegal route, which, let's face it half the world do! It was for the reliability and useability, in particular the ability to customize. MS seems to be making that ever harder.
Rafal1980Are you saying yours went from Modern Comments back to the original format but you are on actually on a current/latest version of 365 Subscription?