Select the Disk Where to Install macOS Blank: What to Do & How to Fix?

After encountering MacBook performance problems, reinstalling macOS, but finds that the field "Select to install macOS" is blank? don’t worry! This article will explore the causes and solutions to this problem in depth.

When reinstalling macOS, the "Select Disk to Install macOS" section should display the available disk options. If there is no option, it means that your device cannot detect available storage devices. This can be caused by a variety of reasons:

• Disk format is incorrect: The disk format does not meet the macOS installation requirements.
• Corrupt or malfunctioning disk: Corrupt or malfunctioning disk is difficult to read by macOS.
• Partition table issue: macOS does not recognize disks with damaged partition map or misconfigured partition map.
• Disk not mounted: macOS issues or software errors may cause the disk to be not mounted correctly.
• USB or external drive conflict: Too many storage devices can make it difficult for the system to prioritize, thus hiding internal disks.
• Compatibility Issues: Older devices may not support newer macOS updates.
• Drive disabled or locked: Locked or disabled drives prevent Macs from accessing and reinstalling them.
• macOS Installer is incompatible: A corrupt or incompatible macOS installer may also cause the system to not recognize the disk.
• Disk corrupt, error or malformed format: These problems will seriously affect the macOS reinstallation process.

Solution:

The following steps can help you solve the problem that the disk is not detected in the macOS installer:

1. Re-download and create a new macOS installer: Download the latest (compatible) macOS from the App Store and follow the instructions for Apple support to create a bootable macOS installer.

2. Make sure the hard disk is working properly: Enter recovery mode (restart the Mac and hold the Command R key at the same time), open Disk Utility and find your disk. If not found, there may be hardware problems.

3. Use Disk Utility to Check Disk Problems: Use Spotlight Search to open Disk Utility, click "View" >"Show All Devices", select the volume to install macOS, click "First Aid" >"Run ">"Continue", wait for first aid to complete, and then try to reinstall macOS.

4. Reformat the problem disk: If first aid is invalid, try reformatting the disk. In Disk Utility, select View > Show All Devices, select Startup Disk, click Erase, and follow the prompts to format the disk.

5. Update firmware and system software: In "System Settings", select "General" > "Software Update", click "Update Now" to install all available updates and restart macOS.

6. Check compatibility with your Mac and macOS versions: Visit the Apple Support website to check if your device is compatible with the macOS you want to install. If it is incompatible, please download the older version of macOS.

Seeking professional help:

If the above method is invalid, it is recommended to seek professional technical support, such as contacting Apple support or using professional Mac maintenance software.

By carefully examining the above steps, you should be able to find and resolve the issue of missing disks during macOS installation.

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