The Best Free Windows Key Viewer Tools for Windows 10 and 11

ShowKeyPlus is a free, open-source Microsoft Store utility designed to instantly identify, retrieve, and verify Windows product keys, including OEM keys embedded in motherboard BIOS/UEFI. The tool supports Windows ⁄₁₁, offers Office key verification, and features a modern interface to simplify license management for reinstalls or upgrades. Download the application directly via the Microsoft Store. ShowKeyPlus – Free download and install on Windows