I'm trying to reinstall Windows on my laptop which originally came with it pre-installed. I accidentally wiped all the data on the NVMe SSD because the laptop broke, but I think I've managed to fix it now. I'm wondering if I can just insert the blank drive, reinstall Windows like usual, and whether it will automatically activate since the product key might be stored in the motherboard? Or will I need to purchase a new key?
6 Answers
Even if you can’t activate Windows, you can still use it with limited features. If you don’t mind those limitations, you might be just fine without a product key.
It doesn’t matter what kind of device you have; you need to enter the product key printed on your PC to activate Windows each time. At least that’s how it was with older versions like XP and Windows 10. You can also make a backup to an external drive, which Windows shows you how to do, and then you can simply reinstall from there!
If your laptop was originally shipped with Windows, it probably has an OEM license stored in the BIOS. You can install Windows normally and just skip the part asking for a product key (select "I don't have a product key"). It should automatically activate once you're online!
Thanks for the help!
The activation key is usually tied to your laptop's hardware, so it should be good to go! Just make sure you're installing the correct version of Windows that matches what's on your laptop.
That's mostly true, but not all vendors do this consistently. Some brands use specific version keys. For example, if your old version was Windows 10 and you try to install Windows 11, it might not activate because the BIOS key isn’t compatible.
Si la laptop ya tiene Windows con licencia, puedes buscar el serial y, después de reinstalar, ingresar el serial nuevamente, ¡y listo! Estará activado.
Although the common practice is that the product key is linked to the hardware, there are rare exceptions. Make sure you have the right installation media ready just in case!

There's quite a bit of misinformation here. Windows 8, 8.1, 10, and 11 all support SLIC BIOS keys these days. I haven’t had to type in a key manually for years!