Hello, this is Emily.
Since I have no idea in what ways and what steps you followed, so it is hard to explain why they are different and why they didn't work.
What is the context here? Did you change hardware, or performa clean install, or a reset? Why did the computer need activation at the first place??
Can you please type cmd in the search on the taskbar and hit enter to launch command prompt, then run the following command:
slmgr /dlv
Then share a screenshot please. Thanks!