These are all license free and available for use.
Just right-click on a sound clip and select Save Target As... from the pop-up menu.
access.wav Data: "Ah, I have access" Great for network connection sound event.
autodef.wav Computer voice, (Majel Barrett - Roddenberry): "Automatic defense procedures initiated".
autshut.wav Computer voice, (Majel Barrett - Roddenberry): "Auto shutdown sequence in progress......"
chnmind.wav From Star Trek IV.
datalaff.wav Data just activated his emotion chip and gets the punch line of a seven year old joke.
deadjim.wav Dr McCoy's immortal words: "He's Dead Jim".
fascinat.wav Spock and his even more immortal word. "Fascinating".
hellocom.wav Also from Star Trek IV, Scotty trying to talk to a Classic Mac.

lifeforms.wav

Data has fun with his new emotion chip in this clip from "Generations"
merryman.wav From the TNG episode "Q Who" Warf is dressed as Will Scarlet in a Robin Hood free-for-all. No kidding Warf.
notcomply.wav Jeri Ryan's Seven-of-Nine being her usual agreeable self.
shutdown.wav Data Shutting down the Holodeck.
tea.wav Picard: "Tea, Earl Gray, Hot".