HT206770: About the OS X El Capitan v10.11.6 Update
Learn about About the OS X El Capitan v10.11.6 Update
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Helpful answers
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Aug 11, 2016 6:41 AM in response to dmoorenyby JimmyCMPIT,you need to remove norton entirely, even terminated it is destabilizing your OS.
https://support.norton.com/sp/en/us/home/current/solutions/kb20080427024142EN_En dUserProfile_en_us
and whoever recommended norton to you should have spent 10 minutes on this forum to see what a intergalactic cluster #### that application is on the mac. Get your money back. Mac AV is worthless and problematic and has never encountered an actual mac infection so it has no track record for prevention but there are no shortage of posts where some commercial AV has HOSED a mac because of how poorly it's developed vs it's PC counterpart.
Unless you are using your mac in a public place on an open connection the firewall is not necessary.
further reading
http://www.thesafemac.com/do-i-need-a-firewall/
once you have done both those things you will need to delete your app store cache and start the DL over again
shut down
disconnect all external devices
boot into safe mode
Try safe mode if your Mac doesn't finish starting up - Apple Support
open terminal and type
open $TMPDIR../C/
then delete the folder com.apple.appstore when it appears
open app store
download the OS.
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Aug 11, 2016 11:49 AM in response to JimmyCMPITby dmooreny,Thanks, but I must be missing a step.
- I am confident I am in Safe Mode due to the slow boot. My Macbook Pro lost its opening sound, but I think my timing was right: pressing Shift when the screen lights but before the Apple logo appears, then release.,
- Then in Terminal after typing in $TMPDIR../C/ the response I receive is simply that this is a directory. I do not see directory contents. I suspect this is where I am missing an instruction.
Don