You still can perform several operations to boost its performance. If after upgrading to macOS Sierra your Mac has suddenly become sluggish, it does not mean it’s high time you wrote it off.

Mac is running slow after macOS Sierra update You may do it manually or use one of the variety of cleaning apps for Macs. There are several ways how to clean up your device. You may always check how much storage is left, what is taking up the most of space and which files and programs should be deleted in the Apple menu going to About Mac > Storage. Nevertheless, we still recommend you to keep 15-20 GB of free storage so that macOS Sierra should operate properly. Usually, macOS update requires approximately 8 GB.

Find the installation file in Applications.

Press Control, in the Dock, find the installation icon and click on it.If you downloaded the macOS update and nothing happens after you click on the installation file or the button Continue is grayed out, do the following: Below we are going to describe the most common macOS Sierra problems and provide you with tips how to solve them. Unfortunately, along with additional features, in some cases, they may face certain issues with the performance of the device, apps and Wi-Fi connection. Most Mac users wishing to update their OS versions have already done so and were able to enjoy the innovations of MacOS Sierra.

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