SD Card or Memory Card Not Reading

SD cards are small and robust but they can confuse Windows in several ways. Work through these checks to get yours showing up safely.

Before Anything Else — Protect Your Data

If the card contains photos or other important files, do not run any repair tools on it until you have attempted to recover the files. Recovery is easier before any further writes to the card.

Physical Checks

• Remove the card, inspect the gold contacts for dust or discolouration, and gently wipe them with a dry, lint-free cloth.
• Check the write-protect switch on the side of the card (full-size SD cards have a small sliding tab). If it is in the locked position, slide it upward toward the card label.
• Try re-inserting the card — they sometimes need to click in firmly.

Check in Disk Management

Even if a card does not appear in File Explorer, it may show up in Disk Management. Right-click the Start button and choose Disk Management. Look for a disk labelled as removable or with no drive letter. If you see it, right-click the partition and assign a drive letter — this is all that is needed in some cases.

Try a Different Card Reader

The built-in card reader on a laptop is one of the components most likely to fail or become temperamental. Try an external USB card reader — they are inexpensive and often more reliable. If the card is read correctly by an external reader, the built-in reader is the problem.

Update the Card Reader Driver

Open Device Manager, expand Memory technology devices or Disk drives, find the card reader entry, right-click, and choose Update driver.

Try the Card in Another Device

If the card is not read in any reader on any computer, it may have a hardware fault. Try it in a camera or another device that accepts the card type. If it fails everywhere, the card itself has likely failed.

If the card is detected but the files are missing or the card appears empty, ask us — data recovery options vary by situation.