Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.


Question: damaged system library

so: I'm a real dummy, to start with. Because I did the one thing that I knew was not to be done, i.e. entering the system library of my iMac and removing something.

I meant to empty the cache in order to install a new Operating System (I'm still on Yosemite), but looks like I did something else and it turned out that now a lot of things don't work anymore.

For instance:

in Safari, when I click the names on the favorites bar, the corresponding sites don't open ;

in Adobe Acrobat when I click to save an open document in a file, it doesn't save it;

the screensaver doesn't see my photos anymore, and so does the desktop;

the line printer isn't connected to my iMac anymore;

some app don't work (one of which is very important for my work). And so on.

I suppose that the only good thing to do is installing the OS again (or else to install Sierra and/or High Sierra), but before I do another stupid thing I prefer to ask someone that knows what to do.

Any advice will be very much appreciated.



Posted on

Question marked as Solved

Restart in the Recovery Partition (Command + R on startup) and restore from your Time Machine backup using a time when your system library was okay.

Posted on

Page content loaded

Nov 14, 2017 10:49 AM in response to eleventhree In response to eleventhree

When you hear the startup tone hold down Command + R keys simultaneously until the computer restarts in the Recovery Partition. About macOS Recovery - Apple Support

If you cannot do that then make an appointment with your local AASP to have the computer repaired.

Nov 14, 2017 10:49 AM

Reply Helpful

Nov 15, 2017 3:47 AM in response to rkaufmann87 In response to rkaufmann87


restoring from the Time Machine backup has worked very well. Now all the iMac programs and apps are working fine.

I still have a minor problem: although all my photos are in the Photo albums, the screensaver app still doesn't see them. Do you have an explanation for this?

Thanks again.


Nov 15, 2017 3:47 AM

Reply Helpful
User profile for user: eleventhree

Question: damaged system library