As you say, this is not necessarily unusual, but when it happens it is usually something that our good friend (?) Microsoft, via it's awful, horrible, buggy, insecure (please feel free to insert any other opinions here!) Windows OS, decides to do, apparently off it's own bat!
Yet if you try to ask Microsoft why (ha ha!), all you get is MS 'BS' which has been honed to an extremely high standard over the years (unlike Windows)! What disaster are we up to now? Windows 10 and you still can't trust them!
In fact Windows 10 represents a change in strategy by Microsoft. Previously we have been 'customers', but Windows 10 changes this and users are now nothing more than 'data sources' to be sold onto anyone that MS can make money out of, unless users know how to prevent this, and even then who knows what information MS are gathering via a 'back door' to the OS? Why do you think that MS were so keen to 'push' Windows 10 onto everyone for 'free', at no apparent cost to the user?
I really find it difficult to believe that Windows, Apple (whatever) or Linux, are the only computer OS that we can choose to adopt and have to trust after so many years of rubbish from all of them!
I must confess that I think that Yamaha's current arranger OS is very lacking (there is not even a basic search facility other than in the IMO waste of space Music finder) !), but the ultimate prize for total lack of customer care must surely go to Microsoft!