However, in the grey/black market of software forums, "OEM Unlock" is code for one thing: for Windows or Office.

: By default, this is disabled to prevent unauthorized parties from factory resetting or flashing new software if your device is stolen.

He connected his phone via USB. On his computer screen, the command terminal sat waiting, a blinking white cursor against a black void. He typed the commands he’d memorized from the tutorials: adb reboot bootloader

Microsoft allows you to download and install Windows 10/11 without a key. You will have a small "Activate Windows" watermark in the corner, but everything works. You can change the wallpaper. You can run games. It is free forever.

The gateway to customizing your Android phone starts with one setting: OEM Unlock . 🔓

OEM Windows keys cost $15-$30 from legitimate third-party resellers. That is cheaper than a pizza dinner.