I want to update my iMac OS X Mavericks Version 10.9.5 to OS X Yosemite 10.10.5. Do I need to backup my files ? or not ?. I'm afraid to update it because I don't want to erase my important files. I'm thinking that if I update my iMac all my files or my apps will be erase or reset .
IMac – Updating Yosemite 10.10.5 ? on iMac
imacmacossoftware-update
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I got this error
I tried updating the Java to the latest Java 8 update 25 but still didn't work.
but after going to the recommended website from apple and download and install it: http://support.apple.com/kb/DL1572?viewlocale=en_US&locale=en_US
it worked just fine again. It was able to start.
It says Java 6. I'm not really sure what other repercussions will be. It's like a downgrade.
i still do have 1.7 in my eclipse compiler though.
I see the same issue, it looks like a bug. It impacts both Chrome and Safari.
I found if I change the account profile settings to allow it to administer, it will start working again.
Not a great long-term solution, but hopefully Apple will patch it soon.
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Best Answer
First, always having a current & active backup should be priority #1.
OS X Installers (Updaters) are designed to be non-destructive and preserve all user data.
As long as no problems are encountered, your data should not be at risk.
With all that being said, make a backup.