Creating a macOS installer on a bootable USB drive provides a convenient way of installing a fresh copy of macOS on multiple Macs, and also allows you to perform a clean installation quickly and easily.
If you tried to run your installer recently and unexpectedly received an error that it is damaged and can't be used, then don't worry – keep reading for a simple and straightforward way to fix it.
Why is my macOS Installer Damaged?
If you tried to use a macOS installer in the last few days or weeks, you may have been met with an error message saying something like "This copy of the Install macOS Mojave.app application is damaged, and can’t be used to install macOS.
As Apple explains in a newly published support document
, the likely reason for the "damaged" error message is an expired certificate. Happily though, the fix is very simple.
How to Fix a Damaged macOS Installer
To fix the damaged installer, you should just download the installer again. Doing so will also ensure that you have all of the macOS updates that have been released since you made the original installer, meaning you won't have to update macOS immediately after the initial installation is complete.
You can find the latest official download links below for the last six versions of Apple's Mac operating system, all of which contain a new certificate that has not expired:
To learn how to perform a clean installation of macOS using the bootable USB drive method, click one of the following links: macOS Catalina
, macOS Mojave
, macOS Sierra
This article, "How to Fix a Damaged macOS Installer
" first appeared on MacRumors.comDiscuss this article
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Stationery Pad is a handy way to nix a step in your workflow if you regularly use document templates on your Mac. The long-standing Finder feature essentially tells a file's parent application to open a copy of it by default, ensuring that the original file remains unedited.
Stationery Pad doesn't get much attention these days, but it's a neat alternative to repeatedly editing templates and using the "Save As..." command, which can lead to overwriting the original file if you're not too careful.
Almost any file type can be defined as a template with Stationery Pad – it could be used to streamline common Photoshop jobs, create skeleton HTML/CSS files, or help with Word document invoicing. To make use of Stationery Pad, create the file you want to use as a template, then follow the steps below.
Continue reading "How to Create File Templates on Your Mac With Finder’s Stationery Pad Feature"
The Finder is a classic Mac system component that's ever-present on your desktop, ready to help you find and organize your documents, media, folders, and other files. It's the smiling icon known as the Happy Mac logo on your Dock, and includes the Finder menu bar at the top of the screen.
A lot of hidden power resides in every Finder window. In this article, we've highlighted some of our favorite Finder tips and tricks to help you work more efficiently with files and folders on your Mac.
Continue reading "10 Essential Tips for Using the macOS Finder More Efficiently"
Apple today released Safari 11.0 for macOS Sierra and OS X El Capitan. The update adds new media-related features, plus improvements to privacy, compatibility, and security
Notably, in Safari 11, the web browser blocks videos with audio from automatically playing on most websites. Other new features are outlined in our macOS High Sierra roundup
- Stops media with audio from automatically playing on most websites
- Adds the ability to configure Reader, content blockers, page zoom, and auto-play settings on a per-website basis, or for all websites
- Improves AutoFill accuracy from Contacts cards
- Includes updated media controls for HTML video and audio
- Enhances performance and efficiency
Safari 11 was first introduced in macOS High Sierra, which will be publicly released on September 25.
Safari 11 is available as a free update within the Mac App Store.Discuss this article
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