Stoped Working please help

I have win7 64-bit ultimate so when i turn my comp on, and when it starts up and loads the desktop it say that explorer.exe stoped working or some other prodram.

Open elevated command prompt.

Copy and paste sfc /scannow into it, hit enter.

Also, start menu search box, type msconfig, hit enter. Go to startup tab.
Use Regedit to remove any keys that will startup apps at boot that aren't necessary to run on your machine 24x7.