Step 1 – Understand what OEM is
OEM is typically intended for use on a single computer and is generally tied to the first device where it’s activated. It’s commonly used for systems that are being set up for long-term use on the same hardware.
In most cases, OEM is the best fit if you don’t plan to move Windows to a different computer later.
Step 2 – Understand what Retail is
Retail is designed to be more flexible. It can usually be moved to another computer later, as long as it’s used on only one device at a time and removed from the previous device before switching.
Retail is commonly chosen when you want the option to transfer Windows to a new PC in the future.
Feature | OEM License | Retail License |
💻 Tied to hardware | Yes – locked to 1 PC | No – can be moved to a different PC |
🔁 Reinstall on same PC | ✅ Allowed | ✅ Allowed |
🔄 Transfer to another PC | ❌ Not allowed | ✅ Allowed (one device at a time) |
🛠 Hardware upgrade allowed | ❗ Only minor changes (no motherboard) | ✅ Major hardware changes allowed |
🧾 Activation method | Manual key entry | Key entry or Microsoft account linking |
💰 Price | Usually cheaper | Slightly more expensive |
💼 Best for | Personal use, fixed devices | Businesses, flexible use, future upgrades |
Transfer flexibility: Retail is typically transferable; OEM is typically tied to the first activated device.
Best use case: OEM is ideal for a single long-term computer setup; Retail is ideal if you may upgrade hardware or switch PCs later.
Installation scenario: Both can be used for clean installations and reinstalls on the same device.
Step 4 – Choose the right option for your needs
If you want flexibility for future hardware changes, Retail is usually the safer choice. If you’re installing Windows on one device and plan to keep it there, OEM is often the most straightforward option.