For those people rolling back from IE10 to IE9, are you using Windows 8 or Windows 7?
It is my understanding that Windows 8 is packaged with IE10 and cannot be rolled back to IE9.
I have searched for rollback procedures and none of the suggested methods work in Windows 8.
NB merely turning the Windows feature - IE10 off, and then trying to install IE9, does not work, the system response is that IE9 is already installed on the system.
If anyone knows of a way to rollback to IE9 for "Windows 8", please let me know?