Windows 10: Windows Activation after hard drive change

I've recently changed out my SSD and reinstalled Windows on the new one. Ever since I have troubles with activating Windows. When I choose the troubleshoot option, then choose "I recently changed hardware on this device" I always get the message "Unable to activate Windows
We can’t reactivate Windows because our servers aren’t available at the moment. Wait for a few minutes, or try adding your Microsoft account again."

What can I do to fix this?

The error code I get: 0xC004F21

:)

 

Hard drive/ OS issue

a guy suggested :

• shutdown
• unhooked HDD
• restarted
• yay !!
• reconnected HDD
• restarted
• yay !!

also , try method 3
How do I unlock the drive where Windows 10 is installed?

 

unrecognised external hard drive on Windows 10

Since you already reinstalled the drivers of the External Hard Drive, let's run the
Hardware and Devices troubleshooter as it can resolve your concern. You can do that by following these steps:

• 
  Press the Start button.
  
• 
  Type and select Troubleshooting.
  
• 
  Click on View all on the left panel.
  
• 
  Select and run the Hardware and Devices troubleshooter.
  

If the Hardware and Devices troubleshooter doesn’t resolve your concern, we suggest that you change the letter of the External Hard Drive. You can do that by following these steps:

• 
  Press the Start button.
  
• 
  Type and select Control panel.
  
• 
  Select System and Security.
  
• 
  Select Administrative Tools, and a new window will appear.
  
• 
  Double-click Computer Management, and a new window will appear.
  
• 
  Select Disk Management that is located under
  Storage in the left pane.
  
• 
  Right click on the External Hard Drive that is not showing on the File Explorer.
  
• 
  Select Change letter and network path, and a new window will appear.
  
• 
  Select Change, and choose the letter that you want for the External Hard Drive.
  

After changing the letter of the External Hard Drive, we suggest that you reboot your laptop for the changes to take effect.



Let us know how it goes.



Regards.

 

Windowed Hard Drives

On the contrary, showing off "slow tech" by adding a window to a hard drive is a "dumb" idea. Do you really want to be showing off a whole "7200-10000 RPM of power" or would you rather show off a plain SSD drive? (If you really desire to "show off")

Adding any window to any drive is just stupid. I just suggested an easier option for you since manufactures don't put windows on the latest hard drives.