Windows 10: How to get product key of old OS (Win 7) after upgrading to Win 10?
One must understand that individual failures do not constitute a company policy nor universal failure.
Many people have reported a successful upgrade to Windows 10, fully activated, then a failure of an activation on a subsequent clean install - only to go back and do an upgrade again and have everything succeed as it is supposed to.
Yup, that's the idea...Thanx.
NavyLCDR, I agree with you.
Quote from this post: Solved Windows 8 Pro license transfer a new Windows 8.1 computer?
The activation page shows the following message (see screenshot below):
This product key is being used on another PC. Please try a different key.
Click on the Call support
option (see screenshot below).
The activation robot asks you how many PC's you have installed Windows on. The correct answer is number 1.
I used to beta test Windows 7 and was always doing a clean install just about every month, and subsequently played around with Windows 8/8.1 and now Windows 10. I've got a couple of Windows 7 keys now in that "won't activate on the internet" window that I have to call Microsoft and tell the computer voice it's only installed on one computer in order to activate. And they are still good, after using them to upgrade to Windows 10 with.
Maybe Kari is in the same situation, I don't know. Each Product Key does have a limited number of times it will activate automatically over the internet within a certain amount of time but until Microsoft sees a heavy repetitive use of the same key, it can be activated by phone.
OK guys, this will take time, encoding in process but after that I need to do some basic editing and add explaining titles before I can post the video:The process as I did it:
- Install Windows 8.1 Pro on a new machine, activate with a valid product key which had never been used before. A totally virgin key. Activation OK
- Reinstall 8.1 Pro on same machine wiping the HDD, use the same key to activate. Activation OK
- Reinstall 8.1 Pro on a new machine, use the same key to activate. Activation OK
- Upgrade the last install to Windows 10. Windows 10 activation OK
- Reinstall 8.1 Pro on a new machine trying to use the same retail product key, resulting this:
Kari sounds like a warning tutorial in the making to me.
Now run slui 4 from a command prompt and attempt phone activation. You probably hit the online activation limit using the same key so many times in a short period of time.
Now that is interesting. The activation must use the original key then it seems.
No tutorial is needed, Microsoft has made this so clear there's no doubt: when an upgrade to 10 is made from a qualifying OS, the underlying valid product key is used to activate 10. It will be flagged as used, a free upgrade to 10 does naturally not give you two activated operating systems, the underlying and the new one. Only one OS will be valid, the upgraded 10, its activation based on the valid underlying product key.
Cliff S said:
Of course I could have done the last install with a generic Windows 8 key and then try to activate it from the settings, but the result is the same: key is used.
I repeat the fact that the Windows 8.1 Pro key I used for this experiment was virgin, never used before. Those knowing MSDN, I only claimed the key today just before starting this experiment.
I started the upgrade from Win 7 Home Premium to 10. I entered the product key, but get the message "Product Key didn't work". I have repeated this several times - I have the original disk & label, checked the key is correct via Belarc Advisor, have...
I'm trying to upgrade a desktop Windows 7 Pro 64bit OEM, activated SP1, to Windows 10.
I will have several machines to upgrade, and my fairly slow connection is capped except for overnight downloads, so I've downloaded the 64bit Techbench...
I'm curious, I might have to try this on an extra partition...
My computer is fully activated on Pro version. I've also done a clean install after the upgrade and activated immediately just fine.
So, let's say I bungled and clean installed...
I'm wondering, if after upgrading a PC to windows 10, can I use the old Windows 7 product key to install windows 7 on another PC?