WD Black 4TB not Working

If your **WD Black 4TB** drive is **not working**, here’s a step-by-step guide to diagnose the issue and recover your data if possible.

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### 🔍 1. **Identify the Symptoms**

Please clarify which of the following applies:

| Symptom | Likely Cause |

| ------------------------------------------- | ------------------------------- |

| Not detected in BIOS | Power/cable failure, dead drive |

| Detected but not in Windows Explorer | Unformatted, corrupt partition |

| Shows in Disk Management as RAW/Unallocated | Corrupt file system |

| Makes clicking or grinding noises | Mechanical failure |

| Spins but not detected | PCB or firmware failure |

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### 🛠️ 2. **Basic Troubleshooting Steps**

#### ✅ Check Cables & Ports

* Try **a different USB/SATA cable**

* Plug into another **USB port** or **SATA slot**

* Try a **different PC**

#### ✅ Check in BIOS/UEFI

* See if the drive is recognized at startup

* If **not listed in BIOS**, the drive may have failed at the hardware level

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### 🧪 3. **Use Disk Management (Windows)**

* Press `Win + R`, type `diskmgmt.msc`, and press Enter

* See if the drive:

* Appears as **Unallocated**: may need partitioning

* Appears as **RAW**: may be corrupt

* Has no letter: assign one via right-click → “Change Drive Letter”

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### 🔧 4. **SMART Status & Health Check**

Use tools like:

* **CrystalDiskInfo** (Windows)

* **WD Dashboard**

* **GSmartControl** (Linux/Windows/macOS)

Check for:

* **Reallocated sectors**

* **Pending sectors**

* **Drive health status**

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### 💡 5. **If Drive is Detected But Inaccessible**

#### Option A: Try `chkdsk` (if file system visible)

```bash

chkdsk X: /f /r

```

* Replace `X:` with your drive letter

* Attempts file system repair and sector remapping

#### Option B: Recover Data

Use recovery tools:

* [**Recuva**](https://www.ccleaner.com/recuva)

* [**TestDisk**](https://www.cgsecurity.org/)

* [**EaseUS Data Recovery Wizard**](https://www.easeus.com/)

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### 🚨 6. **If the Drive Makes Clicking or Grinding Noises**

* **Stop using it immediately**

* This indicates **mechanical failure**

* Attempting to power it repeatedly may cause permanent data loss

* Consider **professional recovery service** (like WD’s partner, Ontrack)

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### 🧾 7. **Warranty & Replacement**

#### ✅ Check Your Warranty:

👉 [WD Warranty Check](https://support.wdc.com/warranty)

You’ll need:

* The **serial number** (on the drive label)

* The **model number** (e.g., WD4005FZBX)

If under warranty:

* Submit an RMA request for **replacement**

* WD typically issues **recertified replacement drives**

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### 🧠 Summary Table

| Status | Next Step |

| ------------------------- | ------------------------------------- |

| Drive not spinning | Check power/cables/try different port |

| Spinning but not detected | Try on another system, check BIOS |

| Detected but inaccessible | Use `chkdsk` or recovery software |

| Making noise | Stop using & consider data recovery |

| Still under warranty | Start RMA with WD |

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If you can provide more details (like how it’s behaving in Disk Management or what OS you're using), I can give more tailored help.