# How to Check SSD or Hard Drive Health in Windows 11

URL: https://www.mytechnician.tech/tips/check-ssd-hard-drive-health-windows-11/
Published: 2026-05-25 | Author: Ankit Kumar
Tags: Windows 11, Data Recovery, Storage, Security
Summary: Read SMART status, use CrystalDiskInfo, and know when a drive is failing before you lose data — what Caution and reallocated sectors mean on Windows 11.
Recommended app: Ultimate PC Repair Tool — https://www.mytechnician.tech/apps/my-technician/ (Microsoft Store: https://apps.microsoft.com/detail/9PH863L9C6HC?hl=en-us&cid=mytechnician-web). Optional; every step below uses built-in Windows tools.

## The Problem
Drives rarely die without warning. **SMART** data logs reallocated sectors, wear on SSDs, and temperature spikes long before Windows refuses to boot. Checking health takes five minutes; guessing after a click of death costs everything on the disk.

> **Already slow but still boots?** See [fix slow SSD speeds](https://www.mytechnician.tech/tips/fix-slow-ssd-speeds-windows-11/) for TRIM and drivers. **C: full?** [Free disk space](https://www.mytechnician.tech/tips/free-up-disk-space-c-drive-full-windows-11/) first—low space is not the same as a dying drive.

## What SMART Tells You (Plain English)
| Status | Meaning |
|--------|---------|
| **Good** | No critical flags right now—still back up. |
| **Caution** | One or more thresholds tripped—clone data soon. |
| **Bad** | Stop writing to the drive; replace and recover. |

SSD **Percent Used** (wear) at 90%+ on a system drive? Plan a replacement even if speed feels fine.

## The Fix: Step-by-Step

### Step 1: Built-In Check (Quick, Limited)
1. Open **File Explorer** → right-click **C:** (or the drive) → **Properties**.
2. **Tools** tab → **Check** under **Error checking**.
3. Let it finish. This catches filesystem errors, not every hardware failure—do not treat "OK" here as a full bill of health.

### Step 2: CrystalDiskInfo (What Shops Use)
1. Download **CrystalDiskInfo** from the official developer site only—avoid bundled installers from download portals.
2. Run it → read the top line: **Good**, **Caution**, or **Bad**.
3. Note **Reallocated Sectors**, **Current Pending Sector Count**, **Uncorrectable Sector Count** on HDDs.
4. On NVMe: **Percentage Used**, **Available Spare**, **Critical Warning**—any **Critical Warning: Yes** means stop using the drive for saves.

Leave it open while you copy files—if temperature climbs past **55–60 °C** idle or **70+ °C** under light use on NVMe, fix airflow.

### Step 3: Vendor Tools for Firmware and Deep Tests
* **Samsung Magician**, **WD Dashboard**, **Crucial Storage Executive**, **Kingston SSD Manager**—match the brand on the label.
* Run **short self-test** first; **extended** only on a backup power supply (laptop plugged in). A test that hangs or errors out is a failed drive.

### Step 4: PowerShell SMART Peek (No Extra Install)
Admin **Terminal**:
```powershell
Get-PhysicalDisk | Select FriendlyName, HealthStatus, OperationalStatus
```
**HealthStatus** should be **Healthy**. **Warning** or **Unhealthy** matches what CrystalDiskInfo would scream about.

### Step 5: When Health Is Caution or Bad
1. **Do not** run chkdsk repair loops on a dying disk—you can make recovery harder.
2. Clone to a new SSD with Macrium Reflect Free, vendor clone tool, or copy files manually to an external drive.
3. Replace the drive, then reinstall or restore from image.

> **Partitions RAW or files missing?** Power off, attach the old drive as a secondary disk on another PC, and scan with [RecoverPro](https://www.mytechnician.tech/apps/data-recovery-pro/) before the controller quits entirely.

### Step 6: Set a Reminder
Check system drives every few months on machines that matter. Laptops that get dropped deserve a look after any hard bump—even SSDs fail from controller damage, not just wear.

## HDD vs SSD: Different Failure Vibes
* **HDD:** clicking, long pauses, rising **Reallocated Sectors**—classic mechanical death.
* **SSD:** sudden "disk not accessible," **Percent Used** maxed, or write speeds falling off a cliff in benchmarks.

Either way: **backup first**, argue about warranty second.

## Blue Screens That Mean the Drive Is Going
Two stop codes are early warnings worth acting on immediately rather than dismissing: [KERNEL_DATA_INPAGE_ERROR](https://www.mytechnician.tech/tips/fix-kernel-data-inpage-error-windows-11/), which means Windows could not read data back from the disk, and [NTFS_FILE_SYSTEM](https://www.mytechnician.tech/tips/fix-ntfs-file-system-bsod-windows-11/). If files are also reported as corrupt between crashes, see [fix error 0x80070570](https://www.mytechnician.tech/tips/fix-error-0x80070570-file-directory-corrupted-windows-11/).

---
Source: https://www.mytechnician.tech/tips/check-ssd-hard-drive-health-windows-11/ — My Technician, free Windows 10/11 troubleshooting guides.
Related tool: Ultimate PC Repair Tool (Ultimate PC Repair Tool is a Windows diagnostic and repair toolkit with system analysis, automated troubleshooting, and hardware checks for Windows 10/11.) — https://www.mytechnician.tech/apps/my-technician/
More guides: https://www.mytechnician.tech/llms.txt