How to uninstall the Windows 8 Consumer Preview from a dual boot with Windows 7
Updated March 21th, 2012 (minor wording changes)
The 2 methods covered here are easy and effective means of deleting Windows 8 from your computer.
The first method is for users who have not implemented the preparation covered in the "How to dual boot Windows 8 Consumer Preview and Windows 7" article, although it also works for those of you who did read and prepaired your computer.
The second method is an alternative only viable for those users who did the up front preparation covered in the first part of this article, as you already have a resort method of removing the Windows 8 Consumer Preview, which are the Ghost 15 image backup(s) you created.
One thing you should do before you start is to create a backup of the Windows 7 partition and the hidden System, Reserved partition before you start.
I used Ghost 15 to create the backup in my article titled: How to dual boot Windows 7 and Windows 8 Consumer Preview (link to this article at bottom of this page).
But any image backup product such as Acronis True Image Home 2012 or EaseUs Todo backup will also do. You do need an external USB hard drive as the destination for the backup. Should something go wrong you can always recover your dual boot arrangement and try removing Windows 8 again.
You should also copy any Windows 8 data files that you want to keep to a flash or USB drive.
Removing Windows 8:
Boot to Windows 7 and follow these steps:
1) Click ‘Start’ and then enter: msconfig, press the ‘Enter’ key.
2) Click on the ‘Boot’ tab and choose Windows 7 and click ‘Set as default’.
3) Click the ‘OK’ button to save your change.
4) Open ‘Disk Management ( Start/Computer/Right click and select ‘Manage’ and then click on ‘Disk Management’). Right click on the Windows 8 partition and select ‘Delete’.
Click ‘Yes’ in the ‘Delete simple volume’ popup.
5) If you plan to test the next release of Windows 8 then leave the space as “Unallocated.
6) Open msconfig on more time, click on the ‘Boot’ tab and select (if listed) Windows 8 and delete it.
7) Restart your computer and Windows 7 should boot, no boot menu should be displayed.
8) Move any Windows 8 data files you stored on your USB or Flash drive over to Windows 7.