Boot & blind-flash a (non-booting) GPU in Windows (AT YOUR OWN RISK)   1. Put these files (without folder) NVFLASH_TOOLKIT_x64_PM on a USB stick and insert it into the system 2. Rename the vBIOS that you want to flash to “master.rom" and add it to the stick 3. If your system already boots blind then continue with step 4. ONLY, In case your system doesn't pass boot, you need