Windows 8 Problems with downgrading Windows 8

[Guldstrand]

I'm trying to help a friend to downgrade from Windows 8 to Windows 7 Ultimate, but i get an error.
The error is something like:

An unexpected error occurred. Restart the installer.

The computer, is a Compaq CQ2000.

 

[Jimbo22]

Instead of downgrading, why not try something like Classic Shell and it's free. This will give you the look and feel of windows 7 but will all the benefits of window 8.

http://www.classicshell.net/

 

[Mike]

You cannot really downgrade Windows 8, obviously. You need to do a clean install. If you are seeing this error from Windows 7 PE loader when you are booting from disc to install the operating system, there may be something wrong with the ISO or the disc itself. You might want to try creating a different type of boot media like a USB flash drive if you have access to the ISO.