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iMac logging off automatically

My iMac has started to log off automatically after some time even if a program such as importing a large number of photos to the photo app or uploading to google photos. This happen after the update to Yosemite. Is there any way to stop this as it interrupts the programs that are running. Thank you

iMac, OS X Yosemite (10.10.4)

Posted on Jul 2, 2015 8:26 AM

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2 replies

Jul 2, 2015 12:17 PM in response to NKC1

From the menu bar, select

 ▹ System Preferences... ▹ Security & Privacy

If there's a closed padlock icon in the lower left corner of the preference pane, click it and enter your login password when prompted.

Click the Advanced button and, in the sheet that opens, uncheck the box marked

Log out after … minutes of inactivity

iMac logging off automatically

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