For Windows computers and laptops it's much simpler; there is a 99.99999% chance that the device you want to buy will be pre-installed with Windows 10. Windows 98, Windows XP, Windows 7 (we miss you), and Windows 8 are long gone.
Users can retroactively install these versions but it is not recommended to go back to an older OS version due to security reasons.
If you are wondering if your computer comes with Windows 10 Pro, there's a slim chance that it would, but who knows? It might. We can find out together!
Also keep in mind the latest news on Windows 11, which means Windows 10 support will end October 14, 2025. Right now, Windows 10 is the dominant Windows OS version, but eventually, there will be more PCs with Windows 11.
If you can’t find the specs you’re looking for, you can try searching for the device on these sites:
For Android, Windows: https://www.kimovil.com/en/