Google Android "process acore stopped unexpectedly" Questions

process.acore has stopped message error for a tablet pc FIRST go to system .manage application.then select all then go to contact storage clear data and after that power off your phone and restart it.

...process.acore has stopped unexpectedly. Please try again" and then I'm made to force close. I've tried rebooting and it won't go away. Any suggestions? Doing a Factory Reset should do the trick. ...