Both keys are genuine, lifetime and activate online. The difference is what happens when you replace your computer.
| OEM | Retail | |
|---|---|---|
| Genuine and lifetime | Yes | Yes |
| Online activation | Yes | Yes |
| Move to a new PC | No, tied to the first PC | Yes, when you stop using the old one |
| Price | Lower | Higher |
| Best for | Keeping your current PC | Planning to upgrade your PC |
Which one should you choose?
If you do not plan to replace your computer, OEM is the better deal. If you plan to change it, Retail lets you take the license with you.