Always the first thing I do when there are software problems on a Mac is Repair the Disk Permissions with Disk Utility.
Heres how :
Open Disk Utility
– Easy way is to use Spotlight, the magnifying glass top right of your screen. Click on it and type in Disk. You will see Disk Utility come up as an option, usually the top option.
Once you have Disk Utility open find it on the right of your Dock, right click or click and hold, in the options pulldown menu choose “Keep in Dock”. This will make it easy to find next time and also remind you to do your monthly repairs!
In Disk Utility select your Macintosh Hard Drive or whatever you may have renamed it from the left hand panel.
You will the see First Aid as an option in the middle/top of the window, choose it if not already there.
once First Aid is selected you can choose the option at the bottom/middle of the window, Repair Disk Permissions. This will take 5 to 10 minutes depending on the health of your Mac OS and the OS version. Disk Permissions repair can only help so its totally safe to do any time.
When this is done give your Mac a restart and see if your issue is resolved!
If you want to know more about Disk Permissions please read on…
Disk Permissions are the reason your Mac is so secure. Every file has a set of permissions and an Administrator password is required to change any permission.
This means that basically the only way a virus can infect your Mac is if you type in your Administrator password and allow it to be installed. Its very unlikely this will ever happen to you however the general rule is never install anything if you don’t know what it is. Its also important to be very aware if install options when installing some software, especially torrent clients, more on this in another post soon.
So, the reason you need to Repair Disk Permissions is sometimes they get written incorrectly, this can happen if your Mac does not shut down properly. An example of the effect this may have is an application not being able to open as it does not have permission to do what it needs to in order to operate. Repairing Disk Permissions will likely be the only fix needed for something like this and can help with all sorts of strange Mac behaviour.
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Thanks from Mac Lifesaver