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Copy and Paste stopped working

16Gb MacBook Pro (Retina, 13-inch, Early 2015) with Sierra 10.12.2 (16C67)

Copy and Paste stopped working between several applications, but not all. I started to notice it when copying from Chrome didn't copy anything to the clipboard. Then i tried from another application (Slack) and that worked fine, however i could not paste the content into Outlook.

So there are multiple applications involved, i have not tried all combinations.

I searched on the forum and there are no real solutions apart from "Try resetting the PRAM", "Try cleaning the cache" and "Reboot the Mac". I saw one post who requested to remove some Finder plist file. I cannot find that post anymore, so i cannot try this out.

What is happening here and how can i make this work again?

Thanks,

Ton.

From your Finder "Go" menu hold the option key and choose Library. Then go to Preferences folder and trash these files:

com.apple.finder.plist

com.apple.sidebarlists.plist

Then, restart, or log out and in again.

(You will have to reset some finder prefs the way you like them.)

Then, restart, or log out and in again.

From your Finder "Go" menu hold the option key and choose Library. Then go to Preferences folder and trash these files:

com.apple.finder.plist

com.apple.sidebarlists.plist

Then, restart, or log out and in again.

(You will have to reset some finder prefs the way you like them.)

Then, restart, or log out and in again.

Any idea what's happening?

If that worked for you it was corrupt preference files.

Well, yeah. I get that. But how could this happen? Why specifically those files? What do they do with regards to Copy/Cut and Paste? Give me some background information.

Preferences are small  text files which can easily become corrupted. Copy/paste are functions of Finder.

Ok, you are unwilling to elaborate. Forget it.

Thanks, this worked for me and saved the day!

I removed both of the files listed and my copy and paste is still not working.  It was pasting the same content over and over again.  Now, since removing the suggested files, it is just not pasting anything?!?

I use this feature a LOT and have never had any issues?!  Can you tell me why this all of a sudden stopped working and how I can fix it?!?

Thank you,
Tracy

Try this:

1. Open a Finder window and navigate to   Go > Hold down Options Key > Library > Preferences
2. Trash the following files

com.apple.finder.plist

com.apple.sidebarlists.plist

3. Perform the following tasks:
   • Log out, then in again.
   • Relaunch the Finder by choosing Force Quit from the Apple menu, selecting Finder, then clicking the Relaunch button.
4. Empty the Trash.

最後更新：2017-10-08 22:24:47

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