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The new update wont install, it says that the data might have been corrupted during download, restart and try again. I did it 3 times already and it still says the same thing.
Everything else was installed except for the 1.09 gb download.....
iPad, iOS 6.1
btw I am using a Macbook Pro 15"
Repair the Hard Drive and Permissions - Yosemite, Mavericks, Mountain Lion or Lion
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility and press the Continue button. After Disk Utility loads select the Macintosh HD entry from the the left side list. Click on the First Aid tab, then click on the Repair Disk button. If Disk Utility reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit Disk Utility and return to the main menu. Select Restart from the Apple menu.
Download and install the OS X Yosemite 10.10.4 Combo Update.
This was not helpfull at all. The Disk had no problems whatsoever.
I am having the same problem... its saying the installation is corrupted. and then it asks me to restart. when i restart... i still cannot download the 10.10.4 update.
I will try Command + R and see if i can repair the drive and report back.
I manage to get it installed. FINALLY!!!
I did the COMMAND and R key.... after all the system reported nothing wrong but maybe something happend that the Update went through after it.
Just do it and then try to download again the update and it should install.
Thank you! I had the same error, followed these instructions, re-ran the update and all is well now
Thanks, it works!
COMMAND+R didn´t work for me. I just turned off the firevault (disk encryption) and the update was completed without issues.
Same problem. The fix also worked for me 🙂
Tnk... It's work fine !!!!!!!!! 🙂
OS X 10.10.4 Update Error
