Cannot run any 32 bit application: error 0xc0000005

Hi. When I try to run any 32 bit application I get the following message: The application was unable to start correctly (0xc0000005). Click OK to close the application. The problem started to occur after using Windows Update yesterday. I have tried to use System Restore to return my system to before the update, this was unsuccessful. I also cannot access my installed updates in the control...