, and a computer running Windows 10 or 11 to use the creator tool. Singapore Specifics
, meaning the license is tied to your specific Lenovo hardware rather than a retail key. Microsoft Learn
If the official Lenovo recovery portal does not support your older model, you can use a generic Windows 7 Professional OEM ISO for installation. Spiceworks Community
ISO can be challenging because Microsoft has officially ended support for Windows 7. "OA" stands for OEM Activation