Want to reinstall windows 8 upgrade after downgrading back to windows 7

I purchased windows 8 pro and upgraded from windows 7 home premium.  Had to go back to windows 7 and want to upgrade to windows 8 again but it won't install.  I've tried many times but it just stops.
 

Question Info


Last updated March 24, 2018 Views 95 Applies to:

Go to the order summary page, there you will find your product key:

https://www.mswos.com/

You can download it from there and use your product key to upgrade:

http://windows.microsoft.com/en-GB/windows-8/upgrade-product-key-only

 

You might need to reactivate by telephone:

1. Press Windows key + X then clickRun, then type: slui.exe 4

2. Next press the 'ENTER' key

3. Select your 'Country' from the list.

4. Choose the 'Phone Activation' option.

5. Stay on the phone (do not select/press any options) and wait for a person to help you with activation.

6. Explain your problem clearly to the support person.

 

Resources:

 

See:

http://techingiteasy.wordpress.com/2012/11/06/part-1-how-to-upgrade-using-the-windows-8-upgrade-assistant/

then:

http://techingiteasy.wordpress.com/2012/11/07/part-2-how-to-upgrade-using-the-windows-8-upgrade-assistant/

 

also:

How to upgrade from Windows 7 to Windows 8

Best,
Andre
Windows Insider MVP
MVP-Windows and Devices for IT
twitter/adacosta
groovypost.com

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