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.
Diagnostic free download - Memory Diagnostic, Data Lifeguard Diagnostic for Windows, CD/DVD Diagnostic, and many more programs.
Data Lifeguard Diagnostics For Windows
If your Mac was introduced before June 2013, it uses Apple Hardware Test instead.
Wd Data Lifeguard Diagnostic For Mac
How to use Apple Diagnostics
- Western Digital used to provide their hard drive diagnostic tools as a bootable CDROM image. They no longer do this, and their support personnel now direct all such requests to the Window only tools. Linux and Mac OS X users are unable to get diagnostic support for their hard drives. Western Digital should release their Data Lifeguard tool and other drive tools like firmware updates, as a.
- I have a bad WD Caviar Blue 500GB drive which I have attached (external usb drive enclosure) to a Windows 7 box to run the Data Lifeguard tests on prior to calling for an RMA. Windows picks the drive and recognizes it as a local disk but the Data Lifeguard software is only seeing logical drives. Is this a software issue with Windows 7? Thanks in advance.
- Data Lifeguard Tools This is a Windows version of the Data LifeGuard Diagnostics. It will test WD. DOWNLOAD; Data Lifeguard Diagnostic for Windows This is a Windows version of the Data LifeGuard Diagnostics. It will test WD. DOWNLOAD; VPN-X VPN-X has VPN essential features, you need not waste money to buy a product. $20 DOWNLOAD; VPN Watcher VPN Watcher is a VPN connection.
- Disconnect all external devices except keyboard, mouse, display, Ethernet connection (if applicable), and connection to AC power.
- Make sure that your Mac is on a hard, flat, stable surface with good ventilation.
- Shut down your Mac.
- Turn on your Mac, then immediately press and hold the D key on your keyboard. Keep holding until you see a screen asking you to choose your language. When Apple Diagnostics knows your language, it displays a progress bar indicating that it's checking your Mac:
- Checking your Mac takes 2 or 3 minutes. If any issues are found, Apple Diagnostics suggests solutions and provides reference codes. Note the reference codes before continuing.
- Choose from these options:
- To repeat the test, click ”Run the test again” or press Command (⌘)-R.
- For more information, including details about your service and support options, click ”Get started” or press Command-G.
- To restart your Mac, click Restart or press R.
- To shut down, click Shut Down or press S.
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.
This step requires an Internet connection. If you're not connected to the Internet, you'll see a page describing how to get connected.
Learn more
If holding down the D key at startup doesn't start Apple Diagnostics:
- If you're using a firmware password, turn it off. You can turn it on again after using Apple Diagnostics.
- Hold down Option-D at startup to attempt to start Apple Diagnostics over the Internet.