Mach Desktop 4K Support

Mach Desktop 4K was running fine with version 1.x now I updated to version 2.0, and now it won't launch. I am running macOS Lion 10.7.5

Please install the 10.7.5 supplemental update, this fixes an issue with Sandboxing that may affect Macs running 10.7.5.

Mach Desktop 4K isn't working right. How can I fully uninstall it?

In most cases, removing Mach from the Applications folder is not necessary. What is important, is to reset the Preferences. First off, quit Mach Desktop 4K. Then, open (/Applications/Utilities/ then type in the following command:

defaults delete com.machsoftwaredesign.desktop4k
And press Return. That should reset Mach Desktop 4K back to Factory settings.

I've opened Mach Desktop 4K and there's no icon in the Dock, what's going on here?

No icon appears in the Dock for Mach Desktop 4K. Instead of that, a desktop icon shows up in the Status Bar near the top-right of the screen. Click on this to bring up a menu, in which you can start/stop the desktop animation, customize preferences, and quit Mach Desktop 4K.

Where can I get those cool white icons used in the screenshots?

You can find them and thousands of other aesthetically pleasing icons at Interface Lift. You can also check out this really cool application called CandyBar, which makes it super easy to change icons throughout the entire file system.

Where can I get more 3D Quartz compositions?

Check out

Where can I get Quicktime movies to put on my desktop?

Both Apple's movie trailer website and the iTunes Store offer videos in HD. However, YouTube is the most popular video website on the web. And you can download YouTube videos in HD straight from Safari or Firefox: No extra software is required. Simply drag this link to your Bookmarks Bar:

DL YouTube Video

The next time you're at a YouTube video, simply click on the button in the Bookmarks Bar. A button will appear on the YouTube page allowing you to download the video.

Any other place to get some nice HD videos?

Try NASA's HD video collection for some truly breathtaking videos.


Mach Software Design is committed to the highest quality applications and take precautions to make sure our applications are feature-rich, fully debugged, and optimized for the target platform. If you have a feature request or issue that's not listed here, please Contact Us.