Not a bug...
The only way a MB manufacturer can keep a handle on their sold goods. Bottom of the stack economically belongs to those who build the hardware. If selling under Microsoft flag, then ANYTHING up from component firmware belongs to them.
[That's my view, of course]
Is Gigabyte who I will demand a refund, If Microsoft leaving my MB at zombie land.
Is Gigabyte who I demand to restart MS free MB. Everyone has a right to exist.