1) When you flash the bios, you flash the whole bios, not just a bit of the bios. Think of it as reinstalling windows without backing up your data. Everything's gone. Your settings don't get saved.
2) While people can certainly give you their settings so you can put them into your machine, that's really the last thing you want to do. Each CPU and motherboard are like **********. CPUs especially vary wildly in their candidacy as good overclockers. Some CPUs will do speed X at only (insert low number here) volts while other identical CPUs will need (insert high number here) volts for that same speed.
If your overclock settings were entered by someone else who built your PC, you can certainly get in touch with them and ask if they recorded the values they entered into the bios. That will work, as those settings are specific to your hardware.
3)Starting with Skylake 6XXX CPUs, the K processors do not come with a heatsink becacause intel is
A)a bunch of cheapo's who want to save a dollar
B)Assuming you have a much better cooler that you will use to OC that CPU
Also this:
A BIOS CHANGE IS NOT AN UPGRADE!! I AM NOT SURE HOW MANY TIMES I WILL SAY THIS. IF ITS WORKING FINE THEN NO NEED TO EVER FLASH.
When you flashed the bios you wrote over all saved profiles at the same time.
No Intel CPU comes with Heatsink anymore.
Bios updates will at best get you stability improvements and compatibility with newer CPUs.
If you have no stability or compatibility issues, and you aren't looking to install a CPU which is unsupported by your current bios version, there really is no need to flash to a newer bios. ESPECIALLY if you're going to lose your overclock and not know how to put things back the way they were
.
At no point and in no way will a bios update "upgrade your PC to a higher performance level".