W8 upgrade from W7 Question/help

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Ok sometime ago I upgraded my 3 computers to W8Pro.

All running well, but one of the computers I want to build a new system for.

The w8 upgrades I clearly marked to the corresponding computers I installed them on.

My problem is I cannot remember which copies of my W7 went on which computer. Is there anyway to tell once the upgrade is done which copy of W7 I had on each computer..
I assume I will need both the W7 & the corresponding W8 copy for my new build.
 
You can do a clean install striaght from Win8 upgrade without Win7,


1. Run the registry editor (regedit)
2. Find the following key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\OOBE
3. Change the value for 'MediaBootInstall' from 1 to 0
4. Open an elevated command prompt (run as admin)
5. Run the following command: slmgr -rearm
6. Reboot


http://answers.microsoft.com/en-us/windows/forum/windows_8-windows_install/windows-8-pro-upgrade-product-key-cant-be-used-to/1726d238-98fb-4634-a468-04645a8ee097
 
You can do a clean install striaght from Win8 upgrade without Win7,

Even if I am installing my W8pro upgrade on a new build I can do a clean install?
Not sure if the article is saying that or not. It seems to be talking about doing a clean install on the original computer that was upgrade. Not on a new build which is what I want to do.
Then again I could be wrong.
 
Last edited:
instead of title :- W8 upgrade from W7 Question/help

i would have put :-

W8 upgrade from W7 Question/ why oh why why why ?

:D
 
Even if I am installing my W8pro upgrade on a new build I can do a clean install?
Not sure if the article is saying that or not. It seems to be talking about doing a clean install on the original computer that was upgrade. Not on a new build which is what I want to do.
Then again I could be wrong.

Yes you can,more info here http://lifehacker.com/5984278/how-to-do-a-clean-install-of-windows-8-with-an-upgrade-disc


If you do a clean install using the Windows 8 Upgrade Assistant, you should be fine—but if you've already formatted your drive or you're moving to a new drive, you can't do a "clean install" without installing an old version of Windows first. It'll let you install Windows 8 cleanly, but when you go to activate, you get an error 0x8007007B, saying your product key can only be used for upgrading.

If you get that error, here's how to fix it:

Press the Windows key and type regedit. Press enter to open the Registry Editor.
Navigate to HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/ and double-click on the MediabootInstall key in the right pane.
Change the key's value from 1 to 0.
Exit the Registry Editor, press the Windows key again, and type cmd. Right-click on the Command Prompt icon and run it as an administrator.
Type slmgr /rearm and press Enter.
Reboot Windows.

When you get back into Windows, you should be able to run the Activation utility and activate Windows as normal, without getting an error. Obviously, you could use this trick for evil, but it has its legitimate place too—if, say, you're upgrading your hard drive and want to do a fresh install on it, or if you formatted your drive before upgrading.
 
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