SSD recovery steps · August 2026

SSD Not Detected? How to Recover Data in 2026?

A missing SSD is not always dead. First find out whether the problem is its connection, file system, controller, or the drive itself, then choose the least risky recovery path.

By Pjirc Blog Editorial Team Published · Updated
Quick answer

Stop writing to the SSD, then check whether BIOS, Disk Management, or Disk Utility can see its correct capacity. If it is visible, scan it with Disk Drill or image it first if it behaves erratically. If no computer can detect it, skip software plus contact an SSD recovery lab.

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Do not initialize, format, erase, run CHKDSK, reinstall the operating system, or update SSD firmware. Each action can alter recoverable data. If the files are irreplaceable, leave the SSD powered off until you choose a recovery plan.

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★ Editorial pick ★ 4.4 / 5

Scan a Detected SSD for Lost Data → Disk Drill

Scans visible SSDs, RAW volumes, plus disk images · Previews found files before recovery · Windows plus macOS

✓ Free scan plus preview ✓ Byte-to-byte backup ✓ Windows plus macOS
Scan the SSD →

When Software Cannot Recover an Undetected SSD

Recovery software needs the operating system to receive readable storage commands from the SSD. If the device is absent from BIOS, Disk Management, System Information, plus Disk Utility across multiple known-good connections, an app has nothing it can scan.

There is one common exception to check first. Some external enclosures or USB adapters fail while the SSD inside remains fine. Testing a compatible adapter can separate an enclosure problem from a dead drive without changing the stored data.

Choose the Right Recovery Method for an Undetected SSD

Match the method to what your computer can still see.

Method Best for Time Success rate
1. Check the SSD Connection TRY FIRST Loose cables, ports, or enclosures ~10 min ● 85%
2. Inspect the SSD in System Tools Missing drive letters or mounts ~5 min ● 78%
3. Scan the Visible SSD With Disk Drill RAW volumes or deleted files ~20–90 min ● 70%
4. Create an Image of the Unstable SSD Slow or disconnecting SSDs ~1–6 hr ● 58%
5. Send the SSD to a Recovery Lab BIOS-invisible or dead SSDs ~3–14 days ● 45%

Top 5 Ways to Recover Data From an Undetected SSD

01

Check the SSD Connection

Start here if the drive vanished after a move, upgrade, power outage, or enclosure change

~10 min
Difficulty Easy
You need Spare cable or port
Works for Internal or external SSDs

A loose SATA cable, weak USB adapter, dirty connector, or unpowered enclosure can make a healthy SSD look dead. Rule out the simple hardware path before running scans or changing partitions.

  1. Shut down the computer, unplug power, then hold its power button for 10 seconds.
  2. Reconnect the SSD firmly. For a SATA drive, reseat both the data cable plus the power plug.
  3. Try a different SATA port, USB port, cable, enclosure, or known-good computer.
  4. For an M.2 SSD, confirm that its NVMe or SATA type matches the slot or enclosure.
  5. Start the computer, then check whether the SSD appears in BIOS or UEFI before loading the operating system.
Disk Drill Review ↗
i Do not repeatedly reconnect an SSD that becomes unusually hot, disconnects at random, or causes the computer to freeze.
02

Inspect the SSD in System Tools

Useful when the drive is absent from File Explorer or Finder but may still be visible to the operating system

~5 min
Difficulty Easy
You need Built-in system tools
Works for Windows or macOS

The SSD may be online yet missing a drive letter, mounted incorrectly, or shown with a damaged file system. System tools reveal its capacity, partition state, plus whether recovery software can access it.

  1. On Windows, right-click Start, open Disk Management, then locate the SSD by capacity.
  2. On macOS, open Disk Utility, choose View, then select Show All Devices.
  3. If Windows shows a healthy partition without a letter, assign an unused drive letter only if the file system is recognized.
  4. If macOS shows a normal volume that is merely unmounted, select it, then click Mount.
  5. If the SSD appears as RAW, unallocated, unknown, or uninitialized, close the tool without formatting or initializing it.
i A drive shown at the correct capacity is usually a better software-recovery candidate than one listed as 0 bytes.
03

Scan the Visible SSD With Disk Drill

Best for a detected SSD with deleted files, a lost partition, or a RAW volume

~20–90 min
Difficulty Easy
You need Disk Drill plus a second drive
Works for Windows or macOS

If the SSD appears in Disk Management or Disk Utility with a believable capacity, Disk Drill may be able to scan it even when the normal volume will not open. SSD recovery still depends heavily on TRIM, controller health, plus whether new data has overwritten the missing files.

  1. Install Disk Drill on a different physical drive, never on the SSD that lost data.
  2. Open Disk Drill, select the entire affected SSD, then click Search for lost data.
  3. Let the scan continue while you review found files by type, date, name, or folder.
  4. Preview several important files. A working preview is a useful sign that the file data remains readable.
  5. Select the files you need, click Recover, then save them to a separate healthy drive.
i Do not restore files to the source SSD. Writing there can overwrite recoverable data.
Visit the Disk Drill recovery page
04

Create an Image of the Unstable SSD

Safer than repeated direct scans when the SSD disconnects, slows down, or reports read errors

~1–6 hr
Difficulty Moderate
You need Healthy drive with enough space
Works for Readable but unstable SSDs

A failing SSD may survive only a limited amount of reading. A sector-level image preserves whatever can still be read, letting you scan the image instead of stressing the original device again.

  1. Connect a healthy destination drive with free space at least equal to the SSD's full capacity.
  2. In Disk Drill, open the byte-to-byte backup feature, then select the unstable SSD as the source.
  3. Save the image file to the healthy destination drive. Do not place it on the failing SSD.
  4. If the SSD drops offline, stop rather than forcing endless retries or power cycles.
  5. After imaging finishes, attach the image in Disk Drill, scan it, preview files, then recover them to another healthy location.
i If imaging causes severe freezing, rapid disconnects, or heat, stop. A recovery lab may have safer hardware.
See Disk Drill
05

Send the SSD to a Recovery Lab

The sensible route when BIOS cannot detect it or the data is too valuable for experiments

~3–14 days
Difficulty Easy to request
You need A reputable SSD recovery lab
Works for Dead or severely unstable SSDs

Software cannot scan a device that the computer cannot communicate with. A specialist may diagnose failed power components, firmware faults, controller problems, or damaged NAND, though modern SSD recovery can be difficult due to encryption plus controller-specific data mapping.

  1. Power off the SSD, then stop further cable swaps, scans, firmware updates, or repair commands.
  2. Write down the SSD model, capacity, symptoms, recent events, plus any passwords or encryption details.
  3. Choose a lab that performs SSD work in-house, gives a written estimate, plus explains its no-data policy.
  4. Ask whether the evaluation requires opening the device or altering its firmware.
  5. Pack the bare drive in an antistatic bag with firm padding, then use tracked shipping.
i For unique business files, family photos, or encrypted data, a lab should come before DIY repair attempts.

Which SSD Recovery Method Should You Use?

Start with the physical connection plus built-in disk tools. If the SSD appears with its proper capacity, scanning it with Disk Drill is the most practical first recovery attempt. Image an unstable drive before scanning, but take a BIOS-invisible SSD straight to a capable lab when the files matter.

Top pick Disk Drill
Keep recovered files on a separate disk, then replace the suspect SSD rather than trusting it with the only copy.

SSD Detection Plus Data Recovery Questions

Can files be recovered if an SSD is not detected?
Sometimes. If the SSD is missing only from File Explorer or Finder but remains visible in system disk tools, software recovery may work. A drive absent from BIOS or hardware reports usually needs professional diagnosis.
Why does my SSD appear in BIOS but not Windows?
The volume may lack a drive letter, use an unsupported file system, or have damaged partition metadata. Check Disk Management before changing anything.
Should I initialize an SSD when Windows asks me to?
No, not if it contains needed files. Initialization writes new disk metadata, which may complicate recovery.
Can Disk Drill recover data from an SSD?
Disk Drill can scan an SSD that the operating system detects. Results depend on TRIM, overwriting, encryption, plus the physical condition of the device.
Can Disk Drill scan a RAW SSD?
Yes, provided the system can access the physical SSD at a stable, believable capacity. Preview key files before committing to a large recovery.
What does SSD TRIM do to deleted files?
TRIM tells the SSD which deleted blocks no longer need to retain their old contents. Once those blocks are cleared, ordinary recovery software cannot reconstruct the missing data from them.
Does turning off the computer improve recovery chances?
It can prevent background writes plus further TRIM activity on a system SSD. Shut down promptly if important files vanished from the active boot drive.
Can CHKDSK fix an undetected SSD?
CHKDSK repairs file-system structures rather than recovering missing data. It may alter metadata, so recover or image the SSD before considering it.
Why is my SSD showing 0 bytes?
A 0-byte reading may point to a controller, firmware, adapter, or communication fault. Try one known-good connection, then stop if the reading remains unchanged.
Can a failed USB enclosure hide a working SSD?
Yes. Enclosures, USB bridges, power supplies, plus cables fail more often than many people expect. Test the SSD with a compatible known-good connection if doing so does not require risky disassembly.
Should I scan a failing SSD more than once?
Avoid repeated full scans. Create an image first if the drive stays readable, then perform recovery work on that copy.
Where should recovered files be saved?
Save them to a different healthy physical drive. Never write recovered material back to the source SSD during the recovery process.
Can data be recovered after formatting an SSD?
A quick format may leave some metadata or file content recoverable, but TRIM can sharply reduce the odds. Stop using the SSD, then scan it as soon as practical.
Will updating SSD firmware make the drive detectable?
Possibly, but firmware updates can reset settings, fail, or change access to stored data. Do not update firmware before recovery unless a qualified specialist recommends that exact procedure.
How do I know whether an SSD needs a recovery lab?
Use a lab if the SSD is absent from BIOS, overheats, disconnects constantly, reports the wrong capacity, or holds files worth far more than a DIY attempt.
How can I prevent another SSD data-loss problem?
Keep at least three copies of important files, with one copy stored separately from the computer. Monitor drive health, replace unstable storage promptly, plus test backups occasionally.