Windows 10: Need help activating Windows 10

Short story: When I try to install the product key I am given the error "The product key you entered didn't work. Check it and try again" 0xc004f050Long version:I live in China and ~6 months ago bought a new computer that had Windows 10 installed. Everything was going fine for a while, but a week ago I started getting the Activate Windows watermark on the bottom right of my computer. According to the responses on my previous help post, it appears I am using a KMS license for my own personal computer. I was told to buy a Windows 11 product key to activate Windows 10. I couldn't buy one on the

:)

 

Windows 10 Activation (Insider)

How long did you wait for activation?
When I re-installed with a fresh install... it took a few hours to sync and activate.
However, it did, finally, activate.

 

DOWNLOAD WINDOWS 10 NOW - Upgrade and ISO direct from microsoft

Click to expand... Yeah I went to that site, why do I need to buy a key?
I won't buy a key, stupid.

I'll revert back to windows 7 then.

When I still was on windows 7, about a year ago I added 4GB extra ram which is a total of 8GB now,
is that causing the problem?

 

DOWNLOAD WINDOWS 10 NOW - Upgrade and ISO direct from microsoft

this search might help you https://www.google.com.au/webhp?sou...o+to+get+it+activated+windows+10+blocked+keys

From Why can't I activate Windows? - Microsoft Support

If you upgraded to Windows 10 for free and ended up in a non-activated state, try following these steps:

• Go to Start
  
  , then select Settings > Update & security > Activation.
• Select Go to Store, and check to see if a valid license is available for your device. If a license isn't available, you'll need to buy Windows from the Store.
  
  Note
  • This only applies if you haven't made changes to the hardware for your device.

or you could hack it with a crack but please note this is always risky and you don't know what's in the hack