1. anon(9424572)'s Avatar
    Long story so bear with me.
    I previously has a Vista premium/pro laptop which was retired & I bought a Win 7, this came with the Win 8 upgrade on CD with a key - key says it's win 8 pro, before I could install win 8 on win 7 laptop, it failed so received a refund, I installed Win 8 over Vista & eventually installed Win 10.
    Now I have a Win 10 home laptop as old one died, can I use the win 8 pro key to upgrade win 10 to pro or was it absorbed into Windows 10 upgrade.
    I just want to make sure before I throw the CD & key away that it cannot be used again to install Win 8 or upgrade Windows.
    04-02-2016 11:42 AM
  2. TechFreak1's Avatar
    I am not sure if this will work, you could try:
    settings -> activation -> click on go to store -> at the link below click i have a windows 10 pro product key -> enter your Win 8 pro product key.
    04-02-2016 12:21 PM

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