update the Mac book pro

adelsalamah Said:

"how can I update Mac book pro?"

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For High Sierra, try the following...

Perform the Following:

1. Go to: Apple menu
2. Select: About This Mac
3. Select: Software Update... button
4. Proceed form there's necessary

Important: First, Back Up your Mac:

Create a Time Machine backup of your Mac, so that you can have something to restore your Mac from, should anything go wrong with the reinstall. Take this as a learning experience, knowing to always create a backup of your Mac, prior to making any major changes to it (i.e. update installation)