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I have macOS Sierra version 10.12.5
When I switch it On its start well, but after 5 mins all opened applications start send Error (Unexpected close). Even trying to open Safari, software update, iPhoto, Microsoft and a few others, all that happens is that the icon bounce up and down on the doc for about 3 minutes then stop with out showing an arrow under it and without opening the app.
What should I do?
EtreCheck is a simple little app to display the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support Communities to help people help you with your Mac.
Pastebin is a good place to paste the whole report if you capture the URL while there…
Workable but harder for me to work with...the Note tool on the bottom of this editor's toolbar, as shown in the image, to copy and paste the output from EtreCheck. In a Reply before you click post, look for this to add longer texts...
Gulp, make certain you have current clone or Time Machine backup...
Failing hard drive - This machine has a hard drive that appears to be failing.
USB3 external drive...
https://eshop.macsales.com/shop/external-drives/OWC-Envoy-Pro
Install Videos if you want to DIY...
https://eshop.macsales.com/installvideos/macbookpro-13-unibody-mid12/
If a 2012 Non-Retina you could yse more RAM...
https://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3_1600MHz_SDRAM
I suspect Hard Drive problems, but does it do better in Safe Made?
Safe Boot from the HD, (holding Shift key down at startup), does the problem occur in Safe Mode?
No its not better in Safe mode.. it actually took long time to load and open the Mac or any program in it like Microsoft or Safari
If I backed-up my data external and I replaced the heard drive with new one.
what will happen to the installed programs and apps, are they going to stay same or I am going to loose them?
If you Clone or backup using Time Machine then all the Apps & data should be fine.
I recommend Carbon Copy Cloner...
Are you making any progress?
MacBook Pro won't work