Ios progress bar not updating

There are a few reasons why the process might be interrupted.Perhaps there's been a power cut; maybe there isn't adequate space available on your Mac (we always recommend that you don't install with less than 10GB free or your Mac may struggle with the installation); maybe there are other problems with your Mac - it's worth running Disk Utility (you'll find it in Applications Utilities) prior to updating just in case.Instead use these to force code to be executed on the UI thread (which is always the “main” thread).

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However, sometimes when you click Go on an update things go a bit pear-shaped.

In this tutorial we'll look at what to do if your Mac stalls or freezes during a operating system software update.

Installing new versions of mac OS on a Mac should be a pretty simple exercise.

The Mac tells you there's an update available via a popup in Notification Centre - in some cases (depending on your settings) it's even downloaded it already and just needs your go-ahead to install.

Apple’s UIKit is generally designed to be dealt with from within the main thread – operating with it from another thread can result in unpredictable results, including: The question then becomes: how can we update our user interface from a background thread?

Utilising Apple’s Grand Central Dispatch APIs is one such way.

Here’s dispatch_sync with a check to see if its necessary first: = 4, you use dispatch_async over this as it the same as like doing wait Until Done: NO.

If you want to wait until the method is finished use dispatch_sync.

If you're having problems downloading the update via the Mac App Store, you can use Apple's website instead.

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