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First thing you need to do is uninstall Uxtheme, personalization panel, aero enabler, xvi32.exe and unlocker
Then do Option 2 of this tutorial SFC /SCANNOW Command - System File Checker
it will not harm any data or programs you have installed it will try to find and repair any corrupt system files that you have. You may need to do this up to three times with a reboot after each scan.
Let us know if this helped at all.
If and when you get it back to normal try using this to get your Personalization panel in home basic this is a newer version 1.4 http://shikharev.deviantart.com/art/...1-4-313329557?
that is all you need to install it will do the patching for you so you can use custom themes.