Once you have the miflash_unlock-en-7.6.727.43 (or similar) folder:
Some Ryzen-based PCs have trouble communicating with Fastboot. Using a USB hub can sometimes resolve this. Conclusion miflashunlocken7672743
Most users will have to wait 168 hours (7 days) after binding their account before the tool will allow the unlock to proceed. How to Use the Tool Once you have the miflash_unlock-en-7
Extract the ZIP file and run miflash_unlock.exe as an administrator. miflashunlocken7672743