I can't seem to find my windows 10 key
So a couple of months ago I bought an Acer nitro 5 since my old pc died and I wanted a laptop for college, I bought the AN515-54-50J1 model since I thought that was the most sensible deal. The thing was I bought a version with windows 10 home as the default os. When the guy there first turned it on it didn't ask for registration of a user which I thought was weird but I just ignored it, but then after a couple of days using it the Your Windows License Will Expire Soon screen started popping up, I then tried to find my windows 10 key in my bios with the command thingy, which didn't work because it was blank there was no key, after a lot of frustration I just decided to use KMSPico to temporarily solve this issue, I forgot about it but a couple of days ago the notification popped up again, I can prove that I bought the version that came with windows 10 as the default os. Also, I can't find any stickers or paper that says what my windows 10 key is. I appreciate any help