Can I save an OEM key to my MS account?

The key is stored on your computer's motherboard, so if you want to re-install there's an option along the lines of "I already have a license" and if you click that it'll automatically detect it.

If your computer is UEFI, the key is stored in the bios and Windows activates as soon as you install it on that hardware.

Manually Note the Key: You can use a password manager or a secure note-taking app to store the OEM key manually.

Digital License Link: If your Windows 10 or Windows 11 installation is linked to your Microsoft account, you can activate your device without needing to enter the OEM key again, as your activation is saved in Microsoft’s servers.

Backup Key: You might consider backing up the key with third-party software tools that can extract and save your OEM key.

Make sure you're signed in to your laptop with your Microsoft account. Go to Settings > Accounts and ensure it shows your Microsoft account email under "Your info". If you're currently using a local account, you can switch to a Microsoft account from that same menu.

This is a product key that comes pre-installed with your laptop's operating system. It's tied to the hardware of the machine, meaning it can often only be used on that specific device. Your laptop manufacturer usually embeds this key into the BIOS or UEFI firmware.

Make sure you are signed in with a Microsoft account. Go to Settings > Accounts and check if you're using a Microsoft account. If you are logged in with a local account, you might want to switch to a Microsoft account. Click on Sign in with a Microsoft account instead and follow the prompts.

First things first, make sure you’re using your Microsoft account to sign into your laptop. If you’re currently logged in with a local account, you can switch to your Microsoft account by going to Settings > Accounts > Your Info and selecting “Sign in with a Microsoft account instead.”