Data Lifeguard Diagnostic for Windows. GoodSync for WD. Install WD Discovery for Windows. WD Drive Utilities for Windows. WD Security for Windows. Western Digital Dashboard. Software for Mac GoodSync for WD. Install WD Discovery for Mac. WD Drive Utilities for Mac. The tool you use depends on your Mac model and macOS version. To see the model and version, choose Apple menu About This Mac. If your Mac is from 2013 or later, use Apple Diagnostics, which is built into your Mac. If your Mac is from 2012 or earlier and has OS X 10.8.4 or later, use Apple Hardware Test, which is built into your Mac.
After isolating an issue on your Mac to a possible hardware issue, you can use Apple Diagnostics to help determine which hardware component might be causing the issue. Apple Diagnostics also suggests solutions and helps you contact Apple Support for assistance.
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If your Mac was introduced before June 2013, it uses Apple Hardware Test instead.
How to use Apple Diagnostics
If you choose to get more information, your Mac starts up from macOS Recovery and displays a web page asking you to choose your country or region. Click ”Agree to send” to send your serial number and reference codes to Apple. Then follow the onscreen service and support instructions. When you're done, you can choose Restart or Shut Down from the Apple menu.
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This step requires an Internet connection. If you're not connected to the Internet, you'll see a page describing how to get connected.
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If holding down the D key at startup doesn't start Apple Diagnostics:
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December 2020
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