, 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

, and a computer running Windows 10 or 11 to use the creator tool. Singapore Specifics

The most official way to get a factory-standard ISO or recovery media is through Lenovo's own support portal. This service allows you to create a USB Recovery key that reinstalls the original factory operating system. Eligibility Check : Visit the Lenovo Recovery Web page and enter your device's Serial Number Requirements : You will need a 32GB+ USB drive