New
#310
All the answers you seek are in previous answers. Without wanting to sound rude, you're not grasping what is going on at all and I feel you are getting over excited about what is an unquantifiable threat and unquantifiable result of mitigation.
BIOS trumps MS patch. If your OEM patches your hardware, you just need the automatic OS updates.
Really, forget about messing with KB4100347 unless you know why you want to uninstall it. If you want protection, leave it. If the OEM doesn't update you, this is the sweeping brush supposed to clean up.
Whether the uCode is delivered via BIOS or update, it is impactful in conjunction with the OS updates. BIOS level patch avoids the need to wait for uCode update patch. Speculative execution is a design feature of your CPU, it has been designed to implement it as a matter of course. It uses otherwise idle CPU cycles to read ahead and cache potential program branches while you decide on an input or the CPU waits for the outcome of another process. Yes, even the browser, everything uses Speculative execution because your CPU is designed to.
Meltdown is patched regardless of your uCode level as it is an OS system level memory boundary exploit. The OS is patched.