Windows 10: Windows license question

If you own a windows home license but then upgrade to a pro license does that delete your home license or can you still downgrade your os back to home using your old home license?

:)

 

License Transfer question


So I found this on the MS website.

Add Windows 8.1 Pro Pack or Windows 8.1 Media Center Pack to your edition of Windows 8.1

• Swipe in from the right edge of the screen, and then tap Search.
  (If you're using a mouse, point to the upper-right corner of the screen, and then click Search.)
  
• Enter add features in the search box, and then tap or click Settings.
  
• Tap or click Add features to Windows 8.1 and then do one of the following:
  
  • If you need to purchase a product key, tap or click I want to buy a product key online.
    Follow the steps to purchase and enter a product key.
    
  • If you already have a product key, tap or click I already have a product key.
• Enter your product key and click Next.
  
• Read the license terms, select the check box to accept the license terms, and then click Add features.
  
  
  Would this be the way to do it? And would it matter that this would be the US version and not UK?
  
  Thanks
  Conor

 

Windows 7 license question

Hi. Is it possible to take a Windows 7 Pro license that's currently installed on a Dell laptop and move that to a Dell desktop and take the Windows 7 Home license from the Dell desktop and install that on the laptop? I would just be switching the licenses from one to another. I get conflicting answers. The desktop would have a new hard drive installed on it and more RAM. I would be doing a fresh install on BOTH machines using a legitimate bloat free Windows disk. Thanks!

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx