If you’re looking to downgrade your XP computer to a more basic OS X experience, there are a few things you can do. One is to uninstall all of the XP features and applications, and then install only the essential ones from the OS X Yosemite installer. Another option is to use an XP recovery disk or image, which will restore your computer to its original state.
Note: This installation will change a lot of files and install a whole bunch of utilities, so proceed with caution if you aren’t prepared to deal with any problems that might happen.
When you launch the setup you’ll eventually get to this screen, where you should check the box for “Create System Restore Point”, along with whichever options you want.
After installation and rebooting your computer, you’ll be presented with a desktop that looks very much like OS X.
It even updates your shutdown screen…
And the login screen…
There’s an included “System Preferences” application that looks just like the one in OS X, but works differently… when you click on the icons it will launch the relevant Windows settings panel.
If you have problems trying to remove this, remember that you setup a Restore point during setup. You can always return everything back to normal by using System Restore if you need to.
Update
Note: Some antivirus software seems to detect a trojan in this software. I think it’s a false positive, but I can’t vouch for the software maker, so be warned either way.
You can visit the author’s site for a list of mirrors, or Download FlyaKiteOSX 3.5 from osx-e.com.