HT201250: Use Time Machine to back up or restore your Mac
Learn about Use Time Machine to back up or restore your Mac
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Helpful answers
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Sep 10, 2016 7:27 PM in response to Cat88by Eric Root,★HelpfulMight be a corrupt .plist.
Do a backup, preferably 2 backups on 2 separate drives.
Quit the application.
Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library. Then go to Preferences/
com.apple.Preview.LSSharedFileList.plist. Move the .plist to your desktop.
Restart the computer, open the application, and test. If it works okay, delete the plist from the desktop.
If the application is the same, return the .plist to where you got it from, overwriting the newer one.
Thanks to leonie for some information contained in this.
If that doesn't work, do a backup.
Quit Preview.
Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Remove the following. You may not find them all. Restart and test.
Containers/com.apple.Preview
Containers/com.apple.quicklook.ui.helper
Preferences/com.apple.Preview.LSSharedFileList.plist
Preferences/com.apple.Preview.SandboxedPersistentURLs.LSSharedFileList.plist
Saved Application State/com.apple.Preview.savedState
Credit Linc Davis for this solution.
Preview Reset automatic download - 3rd party solution
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Sep 10, 2016 7:29 PM in response to Eric Rootby Cat88,Thank you! I will give it a try. I was a bit taken aback as I have only had Yosemite for about 4 months... I'll go through your thorough steps tomorrow when I'm well rested and can focus on the problem. I will let you know if it works. Very grateful for your help.
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