How do I re-install Photo booth? I deleted it off of my computer completely about a year ago by accident.

Get the applications disk that shipped with your computer & reinstall it.

PhotoBooth is one of those programs that only get installed with a OS X re-install.

So even though you may pop the 10.6 install disk and run the bundled programs installer, you won't get PhotoBooth.

It's ok, you don't have to wipe the drive to get PhotoBooth just follow these steps

1: first check to see if you just didn't remove the Dock Alias for PhotoBooth, look in your Applicaitons folder for the original and drag it back to it's spot on the Dock. your done. stop.

2: backup your user files folders (music, pictures etc) off the machine to a storage drive and disconnect

3: pop in your 10.6 machine specific disk that came with the computer, if you upgraded to 10.7 you'll have to hold command r and boot into Lion Recovery. Simply, Reinstall OS X, do not erase the drive.

4: Reboot and hold the shift key down, go to Software Update and update fully to get OS X back to current version

5: Reboot normally and PhotoBooth should have returned.

6: Go around and test your third party programs, some may have gotten disabled as the install kext files into OS X that got kicked out, so reinstall those programs from orignal sources. IF you get gray screen or hangs, reboot with shift key down and update those programs with incompatible kext files.

(note: I know it works for 10.6, not sure with 10.7)

Another option is to use Pacifist to extact PhotoBooth from the OS X install disks and replace it, it's hard to find so dig deep into the OS X installer, it's not in the bundled programs pkg. Note, I haven't tried this.

I think because of the Mac spying issue in Philli that involved schoolchildren in their homes, that Apple took extra pre-cautions with PhotoBooth that require a OS X install to return it back to OS X, so it's not included in the bundled program installer.

Good Luck 🙂