@alekine322, but how they can login to existing Windows? Didn't you have any login password or biometry? If there is a password, AFAIK, it's still possible to format notebook with F8 recovery option during boot.
Windows 10 safe/recovery mode is hard to use sometimes with F8 directly. Never tried but articles say you can access F8 if you turn off your PC 3 times by pressing power long during the small spinning circle of dots.
So without changing a disk, possible to get rid of existing Windows.
Stolen smart TVs, players like Tivo, Roku, etc, are always a hard topic. They do not require authentication. When SVoD services is used on these devices like Netflix, Amazon, again still articles say it's possible to track with IPs.
But lost notebook seems hard to track. There's authentication and not a clear idea what tools or programs will leave a track behind
But i will consider this case, just in case.