I’m not advocating it, but I understand some people may want to downgrade Windows 8. Here is how to do it:
See: Microsoft – Understanding Downgrade Rights
Downgrade only supported from from Windows 8 Pro to Windows 7 Pro (or Vista Biz, LOL).
Steps:
1 – You must have Windows 8 Pro (with license key)
2 – You’ll need a Windows 7 DVD or ISO.
You can download ISO’s here:
Windows 7 Professional with SP1 32-bit
Windows 7 Professional with SP1 64-bit
To create a DVD from an ISO use CDBurnerXP.
To create a bootable flash drive see: Windows 7 USB/DVD download tool. (If you have issues with this see here.)
3 – Install Windows 7 Pro. Do a clean install via instructions here: Installing Windows 7
4 – Activation. When entering key you will probably need to use the “Activation Support phone number” as per the Understanding Downgrade Rights above. Explain what you are doing. They will give you an activation code.
5 – That’s it!