These license keys are downloac always recommended. LTSC is a long-term support Microsoft will provide you with for a longer period of time than the regular Windows channel, which is supported for Retail License keys - Retail.
You will just have to enter your PIN code to log in to Windows 10 instead of entering the password of your Microsoft account or using a phone or another device. Due to its features, stability, and ease of use, many users still search for Windows 10 ISO downloads for free. Now, you need to wait patiently until Windows 10 setup completes the installation part.
