Boot up holding command-r keys into your Recovery Volume.
From the menu bar choose Utilities then select Terminal.
At the prompt type resetpassword
The Password reset utility will launch (do not reset password)
Instead, click your Mac hard drive.
Then from the drop-down select the user account you want to repair. At the bottom of the window, you’ll see an area labeled ‘Reset Home Directory Permissions and ACLs’. Click the Reset button there.
The process takes a couple of minutes. When it’s done, quit the programs you’ve opened and restart your Mac.
Problem with X-lab is not all topics are up to date...
If it was a Trash problem I'd suggest repairing permissions on Trash... you can try it for giggles & laughs but since it is selective in the files that require password I doubt it. Are you able to change permissions on any single file of the type you describe and trash it without any prompts?
Here's the Trash drill anyway...
Choose your Home folder "Get Info" (command-i) and be sure you have "read & write" in the Sharing & Permissions section. Check under "General" section to be sure it isn't locked. If that is correct, launch Applications/Utilities/Terminal and at the prompt copy & paste this command…
If you get a message that the folder already exists, copy & paste these commands...
sudo chown $UID ~/ .Trash
Enter your admin password (it will be invisible)
Press return.Then enter
chmod u+rwx ~/.Trash
Press return. Log out and back in, or restart.
I have changed permissions on all of the files that I've tried to delete just to see if anything works.
Problem being that the permissions on these files and the permissions on the files that I created ON this computer with the current configurations are exactly the same.
It just so happens that any files meeting the following criteria ask me for a password.
- Any files that were created on a different computer and copied to this one.
- Any files created on this computer but were created before I upgraded (fresh install).
It's not a trash problem. Once they are in the trash, I can empty the bin without issue. It's just the process for getting them into the Trash.
I like back in Snow Leopard being able to just hit COM + DEL multiple times and not worry about it. But now I don't even know which files will do it until it happens. Or unless I know they were from my list above.