If you are searching for ASUS Flash Tool version 1.0.0.45 , you are likely working with an older ASUS Android device (such as the ZenFone series from 2014–2016) or attempting a low-level system recovery. Unlike the more modern ASUS Flash Tool for BIOS/UEFI on Windows PCs, this specific version is a legacy utility designed for flashing firmware onto Android smartphones and tablets.