To remove Windows and set up Android on your phone, follow the official uninstall guide and then download the app from the Play Store. For visual help, search for "Windows uninstall tutorial" or "Android setup guide" online. A short video can be found on platforms like YouTube by looking for terms such as "how to uninstall Windows and install Android."
It's not feasible. The BIOS or EFI on a Windows phone differs significantly from that of an Android device. Even if you attempt to alter the bootloader, it might trigger a kernel panic and shut down. I suggest considering selling your current phone and purchasing something you prefer.