I am having this message display EVERY time I try and save something in my newly installed Photoshop (cs5) "Could not save "filename.jpg” because the file is locked or you do not have the necessary access privileges. Use the ‘Get Info’ command in the Finder to unlock the file or change permissions on the file or enclosing folders. I have tried Uninstalling and reinstalling after resetting permissions, I have tried saving the file under a new name, I have tried adding a new admin... nothing seems to work and my Illustrator is working seamlessly!??
I'd been experiencing this myself after a total reinstall of my system and migration of my files and software. I then experienced problems saving, and in some cases opening, all variety of files – not just Photoshop. None of the above worked for me, but then I found the solution and thought I'd share.
The problem wasn't on my main boot-up drive but on other SATA drives that had all my files on. This is what I did:
1. Select Drive
2. "Apple" + "i" keys / File > Get info...
3. Click the padlock in the Sharing & Permissions section at the bottom of the Info window (you will need to input the administrator's password to unlock it)
4. Click the plus sign at the bottom left of the window
5. Select your ID / the user you want to have access
6. Click the Select button
7. When your name appears in the Sharing & Permissions box, click the associated Privileges in the right-hand column (with two up-down little black arrows next to it) and ensure that you select Read & Write.
8. Select your name
9. Click the Cog Wheel & Arrow icon just below this table
10. Select "Apply to enclosed items..." (this ensures that it's not just the disk, but everything contained on the disk that you have the privileges to read and write)
I just went through my day and half of frustration trying to save my work and it would come up file is locked. I tried everything with the properties file to no avail. I found the problem, nothing to do with adobe, properties at all, it was my virus protection program ever so proudly saving my computer from devastation. I wish they made virtual hammers so I could go bash my virus program into a tuna can.