Check compatibility

You can upgrade to macOS Sierra from OS X Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.

MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later

To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS Sierra, the installer will let you know.

Make a backup

Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.

Get connected

It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.

OldVersion.com provides free. software downloads for old versions of programs, drivers and games. So why not downgrade to the version you love? Because newer is not always bett. We may earn a commission for purchases using our links. No problem How to view websites on your Mac that require Internet Explorer (or a PC).

Download macOS Sierra

For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.

If you still need macOS Sierra, use this link: Download macOS Sierra. A file named InstallOS.dmg will download to your Mac.

Install the macOS installer

Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallOS.pkg.

Follow the onscreen instructions, which will guide you through the steps necessary to install.

Begin installation

After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install macOS Sierra.

Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.

Allow installation to complete

Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.

Learn more

• If you have hardware or software that isn't compatible with macOS Sierra, you might be able to install the previous version, OS X El Capitan.
• macOS Sierra won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
• You can use macOS Recovery to reinstall macOS.

Internet Explorer 5 Editor's Review

Browse the internet with Microsoft's flagship browser on your Mac

Back in the day, running IE was never an afterthought. You did it because it was the best browser around or because you used it on a Windows box at work, and running it at home was a no brainer. Running it on a Mac was a challenge, that is until Microsoft released IE 5 for Mac.

Internet Explorer 5 is the latest version of its flagship browser that Microsoft developed exclusively for Mac users. You can use it on any Mac running Mac OS X 10.6.x or EARLIER.

Internet Explorer 5 for Mac uses a rendering engine called Tasman. It was designed to be more compliant with the W3C standards in HTML 4.0, CSS Level 1, DOM Level 1, and ECMAScript. It also supports the PNG image standard, DOCTYPE switching, Text Zoom and XML source view. It also included an Auction Manager for tracking auctions in sites like eBay and an Internet Scrapbook to allow users to quickly and easily store and organize web content (for example an image or a piece of selected text).

App Pro’s: Free

App Con’s: Released in 2002 and not supported since 2005, Wants to install bloatware (Genio), actual app doesn't install until you get past the bloatware install, won't run on OS X 10.7 Lion and later, must use a Mac with Snow Leopard (10.6.x) and earlier

Internet Explorer 11 For Mac High Sierra

Conclusion: Internet Explorer 5 for Mac is an ok browser. IE is full of security holes, and unfortunately, support for IE 5 for Mac ended in 2005, almost 9.5 years ago as of this writing. The app will NOT run on modern Macs anyway. The app requires Rosetta in order to run, and support for universal (apps that ran on both PowerPC-based Macs and Intel-based Macs) was removed in OS X 10.7, so this app will NOT run on Macs produced after 2010; and with technology that stretches back to 2002, you probably won't want it to, either.

Internet Explorer For Mac High Sierra Download

Many of today's websites use technology that are not compatible with IE5 for Mac. MSN.com, for example, will not display correctly in this browser. You're going to run into compatibility issues like this with many websites, just be aware of this as you use the app.