SD Card Shows “Secure Digital Storage Device” after Connected to Computer?
29 July 2019John Weaver Senior Program Developer
When you insert the SD card or microSD card into the PC, it probably shows up “Secure Digital Storage Device”. What is it? This article will give you the answer and tell you how to solve it. By the way, it will talk about how to recover the lost data in SD and microSD cards.
SD card, namely Secure Digital Memory Card, is a portable device designed for data storage and data transmission, applicable to some portable devices, such as cameras, gamers, smartphones as well as computers and laptops.
There are 3 sizes of SD card – the (full-size) SD card, the mini SD card and the micro SD card. The physical dimension of the SD card is the biggest and the microSD card is the smallest, and it usually appears in portable devices, such as smartphones and some small storage devices.
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Reasons of SD Card Shows up “Secure Digital Storage Device” in Windows?
It shows up “Secure Digital Storage Device” as we insert the SD card into the PC. What does it means? Such problem should be discussed in two situations.
Situation 1. Can be Read by PC
If your SD card can be read by the PC, “Secure Digital Storage Device” maybe just the drive name defined by Windows. After all, this is the full name of SD card.
Situation 2. Cannot be Read by PC
If your SD card cannot be read by the PC, you can try the suggestions below:
1. Change another card reader. It could be incompatible with the card reader. 2. Change another port or slot. Maybe there is something wrong with the USB port or the slot. 3. Reinsert the SD card or use an eraser to gently clean the contacts. The dirt on the SD card will cause higher electronic resistance, which will prevent connection.
4. Press the card a little harder or wrap it around a piece of paper. The contacts may be not elastic anymore, so it cannot connect to the port or the slot rightly. 5. Change a new SD card if the hardware is faulty. 6. Possibly, the SD card has been encrypted and enabled write-protection.
You can follow these methods to remove write-protection:
(1) Unlock SD card with the physical switch
Alongside the SD card, some manufacturers will add a switch. If it is locked, the file in the card cannot be modified. You can check and keep it unlocked if your SD card has such switch. Then you can insert the SD card again.
However, if your SD card doesn’t have such lock, please refer to the following methods.
(2) Use registry to remove write-protection
① Connect the SD card to the computer.
② Press the keys [Win + R] to open the Run box.
③ Type [regedit] and hit Enter to run Registry Editor.
④ Navigate to [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control]. Then check the key [StorageDevicePolicies] in Control. Then at the right side, double-click [WriteProtect] to change the value to “0”.
⑤ If you can’t find the item [StorageDevicePolicies], right-click at [Control] and add a new key named as [StorageDevicePolicies]. Then, right-click at the blank area to add [DWORD (32-bit) Value] or [QWORD (64-bit) Value] named as [WriteProtect]. The bit is based on your PC system.
⑥ Then double-click [WriteProtect] and change the value to 0. Reinsert the SD card to check.