I installed windows 8 and basically none of the metro apps work now, Video, Music, even PC Settings (which means i can't reset windows! >.<) and any time i try to open a file using these apps it says "File Path invalid value for registry" it was working before it's only today that it hasn't worked, it doesn't even try to start, I'm running Windows 8 customer preview build 8400, also the only thing that May have contributed (I'm not sure) is that i ran the registry cleaner and privacy eraser function on "Clean my pc - registry cleaner". If someone could give me a few steps to fix this or at least tell me what the problem is! it would be much appreciated.
You might see if you may be able to do a system restore using a restore point (if available) dated before you ran the registry cleaners to see if that may help.
Using registry cleaners should be avoided since they usually cause more harm than any gain that you could possibly get from them if allowed to just delete all scan results without making sure that they are safe to delete.
Thank's for the advice Brink but as the installation is only a few weeks old i haven't created a restore point yet, nor has one been automatically created. I think I'll resort to backing up the data i want (just some movies and work) and reinstall windows 8.
Thanks for the advice though.