HT206886: How to get macOS Sierra
Learn about How to get macOS Sierra
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Helpful answers
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May 11, 2015 10:56 PM in response to Amjad Ali Bachaby Kappy,What are you doing? What error or alert messages do you receive? You download and install the OS X Yosemite 10.10.3 Combo Update.
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May 11, 2015 11:38 PM in response to Kappyby Amjad Ali Bacha,Thank you Kappy, after complete downloading and installation it give the message of "update failed due to either corrupted of incomplete file download". i did the process several time and at end after restarting the same messages is popped up.
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May 11, 2015 11:45 PM in response to Amjad Ali Bachaby D.Cohen,Make sure you have a stable Internet connection.
Try the steps below, download the update once again and then try to update your MacBook.
- Shut down your Mac
- Wait until your computer turns off and after that press the Power button
- Right after you hear the startup tone, press and hold the Shift key
- Release the Shift key when you see a grey Apple sign and the progress bar below this sign
- Once you see Desktop, start a Disk Utility scan to detect and repair file system errors (don't forget to choose your main hard drive)
- Click on Verify Disc and then, if asked to fix problems, on Repair Disk
- After this, click on Verify Disk Permissions and then on Repair Disk Permissions
- After the process is finished, shut down your Mac and turn it back on after about 30 seconds
Hope this helps!