Insufficient Space: This is another common problem that's easily rectified. You can also try another drive to see if it works, or switch it to a different port. Make sure USB drive is installed on the PC. USB Drive Not Detected: If your USB stick isn't being detected, it's a system problem or an issue with the drive itself. Here is a list of the most common problems and how to fix them: Occasionally, you may run into some errors while preparing to burn macOS DMG to a USB drive. Troubleshooting Tips when Burning macOS DMG to USB Now, click on the USB drive name and follow the screen prompt to get Big Sur installed on your Mac. Once the graphics user interface appears, you will have the chance to select a temporary booting device from Start Manager. At the same time, keep pressing the Option key for a few seconds. Please insert the macOS install media into the Mac and power on the Mac. The next step is to install macOS Big Sur on that Mac in order to fix the system issue or upgrade the current OS to Big Sur. Step 1: Download and install UUByte DMG Editor on Windows 10 using the official ISO installation file, which you can download from the UUByte website here.ĭownload Mac Version Start Installing macOS Big Sur on Target MacĪfter the above steps, you already have a bootable macOS installer USB at hand. Once you have the DMG file on your PC, proceed with the following steps to create a bootable USB installer for macOS Big Sur beta. The interface and functions are easy to understand and even first-time users with no experience working with DMG files can easily get up to speed with the software in a few minutes. It is one of the simplest yet most powerful tools for managing DMG and other disk image file formats and is available for both Windows and Mac. For this stage of the process, we will use UUByte DMG Editor, a professional disk authoring and disk image management tool.

It could be much faster if it were hosted on Apple server or Google Drive.Ĭreate a macOS Big Sur Bootable USB on Windows 10 PCĪfter downloading macOS Big Sur DMG file, you have to burn macOS dmg file to an USB. The download might be a little slow as it is hosted on a third-party website. If you don't have a Mac at hand, then you can directly download macOS Big DMG file via ( link 1 or link2). Obviously, you can't register your Windows 10 computer so you will need a Mac computer to acquire the app. For that reason, we recommend that you sign up for the Apple Beta Software Program here and proceed to register an Apple device so you can get access to download the OS profile and Big Sur Install app. Of course, there are several third-party sources that are now offering the macOS Big Sur beta version as DMG but not all of them are trustworthy. Let's briefly look at how to download macOS Big Sur DMG file. Although there are some tricks to install macOS Big Sur on unsupported Macs, it is not recommended doing so as it may brick your Mac.

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