Windows 10: Upgrading Hard drive, can I use my existing Product Key?

Upgrading my hard drive to a larger unit and I was just wondering can I use the existing product key that can with the computer if I did a fresh install of windows 10? Haven't really messed around with this before just looking for some help before I get to far along.

:)

 

Cannot upgrade to Windows 10 - Unique Product Key situation

No... let me try again.

• Old computer is running Win7 Pro (SP1) with a Product key I have from a few years ago. The Product is activated already, but I do NOT use this computer at this point, so I didn't worry about using the Product key when moving to the new computer (see below).
  
• New computer is running Win10 Pro, with data and OS migrated from the Old computer, (same Product key as above), then Upgraded to Win10 (without getting a new Product Key).

What I am trying to do now...

• I want to upgrade the OLD computer (Win7 Pro) to Windows 10... using a new Product Key I just purchased.
• I have tried to do this internally, and also using the ISO burned to a thumb drive. But it does not want to work.
• Steps:
  • Start from USB drive.
  • Enter New Product Key (or click "I don't have one").
  • Install initiates and then tells me to restart from Windows and then open the installer again to continue.
    • At this point, I actually need to Quit the installation to restart the machine.
  • When restarted, I go to the USB drive and restart/resume the installation process.
  • I have tried to download and not to download updates, but when the installation fails, I see the message, "Something happened" and "Setup has failed to validate the product key".
  • NOTE This happens if I enter the NEW Windows 10 Product Key, or if I skip that step (which I assume means that it will use the old Windows 7 Key for the upgrade).

 

Overclock your hard drive!!!

Heres a much easier hack that I realized quite a few years ago that really does work!

REQUIREMENTS:

• Hard drive with molex power connection.
• PSU with more than 1 strand that has molex plugs on it.
• Wire strippers, soldering iron if you're fancy, electrical tape if you're not.

STEPS:

• Take the strand of connectors from your PSU, and decide which one will be the donator for this overclocking adventure.
• Cut the yellow and orange cables, then twist them together.
• Find the power connector you've chosen as the overclocking connector, and release the orange cable from the connector. Now use your preferred method to bind them together, then place it back together.
• Plug in a drive and feel the speed!

Congratulations! You've just overclocked your hard drive!

 

recover product key from laptop hard drive

hi, i had this dell laptop which came originally with vista, i bought win7 when it came out and kept using it, when the win 10 upgrade came i upgraded it to the insider version, but later the laptop died, the videocard gave up. but the hard drive was still
ok, so my question is, can i use this product key on my new pc that im building, if so how can i recover my product key from the hard drive, i put on a hard drive case so i could see if it was ok, thanks.