imaguest wrote: ... my Macbook Pro... version 10.10.3 ...
Your 10.10.3 is out of date. The current version of Yosemite is 10.10.4.
If you don't have a proven update method, I suggest use the following workflow to update your Mac OS without losing data:
• Restart your Mac.
• Then use your Mac's Disk Utility to repair permissions.
• Now download and apply the latest OS X Combo Update (currently 10.10.4).
• Repair permissions again immediately following the system restart that completes the Combo update.
imaguest wrote: ... I just don't want to lose my data...
Backup your Mac to keep your data safe.
- Time Machine - Learn how to backup your Mac using Time Machine.
- Time Capsule - Learn more about backing up your data using Time Capsule.
- iCloud - Use iCloud to backup your music, photos, calendars, etc.
- Backup options - Learn about alternative options for backing up your Mac.
imaguest wrote: ... Macbook Pro ... version 10.10.3...Is there a way that I can restore my camera without losing anything? ...
One of these will fix your camera problem:
(1) If restarting your Mac doesn't fix the problem,
(2) use Apple's http://support.apple.com/kb/HT2090.
(BTW - The Troubleshooting article calls the camera an "iSight". However, after the article was published, Apple has changed the built-in camera's name on newer Macs from "iSight" to "FaceTime" and then to "FaceTime HD." Regardless of the name of your built-in camera, the same info and troubleshooting applies.)
Be sure to test more than one Apple app (examples: iMovie, Photo Booth, QuickTime Player, etc.) in more than one user account. Do NOT use the "Guest" account for this test. If you do not have more than one user account for the testing, create a new one now. If you need help, how to do it is explained in http://support.apple.com/en-us/HT201754.
A "Standard" user account is all you need for testing.
(3) If your cam won't work properly even with Apple apps, use OS X Recovery to completely reinstall your Mac OS. Don't bother testing Skype or other third-party apps until you have your camera working with Apple apps.
None of the above suggestions will "lose" anything on your Mac if you follow the suggested processes.
(4) If none of the above suggestions resolve your trouble, contact Apple or an Apple-Authorized Service Provider to have your Mac professionally serviced.
You are not in control of what may be "lost" by the servicing technician(s). http://www.apple.com/support/backup/
Backup your Mac before sending it for service !
Message was edited by: EZ Jim
Mac OSX 10.10.4