Are you able to physically replace the HDD (preferably with an SSD)? If so, you can use the (Win10) Media Creation Tool to create a USB installer.
When it prompts for a key, just skip it. If you have an OEM mass activation laptop (i.e. anything from a major brand), it’ll activate automatically after. If, for whatever reason it still doesn’t activate, you’ll have a nag screen telling you to activate. It won’t significantly limit what you do.
wander1236@sh.itjust.works 10 hours ago
It’s super easy to activate Windows for free, and Microsoft doesn’t care: massgrave.dev.
If you were logged in with your Microsoft account before, that should also restore your real previous activation.
datavoid@lemmy.ml 10 hours ago
You don’t even have to feel bad about it either! As Microsoft once said, Windows 10 is the last windows operating system. Sounds like you already owned that, so you’re good.
I’ve even contacted MS support before telling them I wasn’t going to buy windows 11 as I paid for 10 and they said that was the last version. They gave me a new key no questions asked.
wander1236@sh.itjust.works 9 hours ago
I thought 10 keys worked for 11 anyway. I’m pretty sure you can still use 7 keys if you try hard enough