Windows 10 is a pain

Once again Microsoft fucked up things.
My mom has several computers. And she is forced to use windows - as some apps she is forced to use for her work require windows.
Every couple of months windows 10 will force upgrade to new build. And it will remove much of the configuration - and some things stop working (scanners, printers, network drives, etc.).
In addition some features become broken (ex. avatars for local accounts) or replaced by new tools (so user nor admin can never find what they are looking for).
When combined with whole drive encryption requirement (for security) we have only one practical choice - bitlocker. And from time to time... upgrade would remove all the user data, corrupt disk drive or even decrypt crypted drive and corrupt it (so overwriting encrypted data with crap data) or leaving them decrypted but not accessible.
And it will force upgrade and restart.
Windows 10 is a closed source so in case of problems... best solution is to reinstall OS.

As a result :
- windows 10 is not secure (encryption issues)
- windows 10 is not stable (upgrade could come any time corrupting data or features)
- windows 10 is not reliable (at any time it can stop working)
- windows 10 cannot guarantee it would have uptime longer than 4h... In fact it says that if it wants an update then it won't have uptime longer than 4h
- windows 10 is difficult to maintain (need to configure many things after an update)
- windows 10 is difficult to use - the usability "improvements" make interface changing too often and users would encounter issues just too often (often without enough knowledge to solve them on their own)

Only solution seems to be... An external drive to keep the data, frequent backups onto local versioned cloud, own data encryption (Linux?) and hope that this awful system (windows) will die soon.

By the way... what happened most recently to a computer of my mother was: OS partition encrypted with bitlocker become corrupted (showing as RAW instead of NTFS) so I can neither recover the data nor recover (fresh install) OS. In fact what I will do is to make a backup of the corrupted partition and then to clean it, format it and make a fresh install of the OS.