[Solved] SD Card not Recognized by PC

You insert your SD card into the internal card reader, but the SD card is not recognized by PC and the SD card drive doesn’t show up. The problem can be caused due to driver issue, system issue and device issue. Following we will show you how to troubleshoot this problem.


Firstly, check if the problem is caused by driver issue. Go to Device Manager.  You should see the card reader in the list. If it has a yellow sign beside it, the problem is most probably caused by driver issue. Then you need to update the driver. You can go to the device manufacturer’s website to find and download the driver for your card reader. Alternatively, you can use DriverEasy to download and install the driver automatically. After updating the driver, the problem will be resolved.

Driver Easy
has Free version and Professional version. With Professional version, you can have free technical support guarantee. If you need further assistance regarding your card reader issue, you can contact us at support@drivereasy.com. Our professional team would help fix the problem. If you want to have the problem fixed more easily and quickly, just click here to download Driver Easy now. 

Secondly, check if the problem is caused due to card issue. If the SD card is broken, it won’t be recognized by PC. You can plug the card into another PC to see if it works. If it doesn’t work either, you can try cleaning the card. After cleaning the card, if it still doesn’t work, the card is probably broken, you may need to have your card replaced.

Thirdly, check if the card reader works. If the card reader is stuck with dust, it will lead bad contact between the card and the card reader. Try cleaning the card reader slot and see if this solves the problem.


Fourthly, check if the card reader is disabled in BIOS settings. At the first screen after restart, look for a key to press for “BIOS” or “Settings”.  Verify that the card reader has not been disabled in the BIOS settings.


Hope tips here help fix SD card is not recognized by PC. 

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Camilla Mo, in Common errorTechnical Tips
  1. After many hours of trying to resolve this problem, I ended up resetting the resetting the BIOS configuration to solve this issue.

    1. Would you mind giving me the complete instructions that you used to get the reader working.. I am not too sharp on putters as I am only 80 yrs old.. So walk me thru it, REAL SLOW!! Bill

  2. I have a 2016 hp touch screen laptop and bought a brand new Lexar platinum ii ad card, when inserting it it does not read at all or even acknowledge that the card is in. In other laptops it does, but not in mine, anyone know how to fix this?

  3. A bit old here but,

    i bought a 32GB SDHC Card and the Reader came with it (bought it like 30min. ago). i can see it in the Manager, but i can’t access it.
    The product is from Hama, you can look at the Stats yourself with the Item Num.: 114788

    All i want is to Replace the SDHC Card in my 3DS and copy all Data onto it.

  4. Easy solution for me: ASUS X551C, Win10, 16G SD:
    Go to device manager as above — when I do it there is no SD Host Adapters but there is Memory Technology Devices under which there is RealteK PCIE Cardreader. Select this then click Driver then on the Disable, acknowledge the popup, then back at the driver screen click on the Enable and its popup — the SD card now appears as it did previously & is accessable.
    Don’t know why this works but it did for me.

    1. It worked for me, too. I disabled the device, then took the card out of the card reader, then enabled the device, then put the card back in. It works for me!

  5. Hello,
    I got a 32g sd card about a month ago and have been using it without any issues. However a couple of days ago, I got a pop up on my phone saying something about formatting my sd card. I tried formatting it but the phone was not detecting it. I’ve tried it with a couple of phones and a windows 10 pc but it still don’t detect it. Any advice?

  6. I have a 32gb sd card, it was working fine, but suddenly it stop working, starting to heatup, but only card adaptr area, then i tried to plug it in to my laptop with the help of card reader but it not even showing to my laptop but my card reader start heating up. i dont know whats the problem with it.

  7. i have an 8gb SD card that I was using in my Huawei p8. both internal and SD card memory has been full for a while and a few days ago I got a pop up on the phone saying something about the SD card that I paid no mind to, I then realised that it was no longer reading on the phone. I tried taking it out and inserting on my laptop via adaptor slot. but doesn’t read there as well. Does this mean that SD card just stopped working or somehow broke while I n my phone?

    1. I have the very same issue since today. My phone is a Moto G3 and I used a SanDisk 32Gb. Really bad situation… luckily I have back-up of all photos.

  8. I had the same issue after upgrading to Win 10. I went into the Device Manager. Went to the SD Card Controller and disabled and then enabled and it read the card.

  9. All my drivers are up to date and I can see the SD drive in devices but when I install the SD card I cannot hear the normal ding acknowledging that the card has been put into the drive. I can read the card on other laptops (one is exactly the same set up as mine with WINDOWS 10 and same brand of computer etc.Does anyone have any other ideas on how to read the card?

  10. My problem seems to be even more acute!

    My Win7 64bit PC does not show up two SD 8 GB Kingston cards. If I plug one of them in the SD slot I can hear a “ding-ding” (mount?) soon followed by a “ding” (dismount?).
    – Both cards can be mounted, read and written on USB port of the same PC (via the USB adapter)!
    – Both cards can be mounted, read and written on other PCs (Win7 and Win10)!
    – Other SD cads can be monuted, read and written on the Win7 64bit PC!

    I checked all the drivers on the PC, I switched of the Security Defender (I thought of some security issues), I formatted and rewritten the cards on other computers… and so far nothing made the two cards work on the particular PC via SD slot.

    The two cards are in function of the SDs of a Garmin device and have been since ever successfuly serviced on the particular PC. The PC is therefor equiped with the appropriate SW, while SD in the most apprpriate port for the operations.

    Please help! I run out of knowledge and ideas of what what would possibly prevent those two SD cards to work on that particular PC?

  11. hi,
    I have a 64gb sdxc card in my note 4 as external. and recently while making videos i needed to make some space in my external sd card, so i started to delete some movies i had copied in the card by ES explorer.
    and maybe i was deleting rather quickly and something corrupted in the card and it stopped deleting two folders. and then i checked with root explorer and AMaze and all failed to delete those two folders. then i connected my phone via MTP and tried to delete those folders via windows and it also failed to do that.
    so i thought that i need to use the CHKDSK commmands to FIX the SDCARD. so i removed the card from phone and inserted it in laptop via Sd card adapter in the sd card slot. the laptop picked it up and displayed it as E drive. i tried to delete one of the stubborn folders and it was deleted easily. hmmmm.
    then i right clicked the sd card E drive and selected TOOLS/error checking/ with fix option and it ran for few sec and returned all is well results. it didn’t find anything out of ordinary. hmmm.
    so i opened up a CMD window and ran the commands to fix the card from DOS.
    “chkdsk /x /f E:”
    it ran but stopped response in the start. and i waited for it to show it going through any files and folders by nothing… it normally takes few seconds to do this task but i waited almost 5 to 10 minutes then i closed the task with CTRL~C but nothing. then i had to close the CMD window with clicking X in the corner and CMD went away. but the E drive was now showing stalled or sort of stuck (no letter) then i removed the card from the laptop and reinserted, nothing happened. i tried another sd card with 32Gb and it was picked up by windows easily. then i tried the 64gb card again and no response. hmm.
    I tried the CMD commands again but got the dreaded “cannot open volume for direct access.”
    I put the card back in the phone and it showed all the data intact. i played some videos, worked ok.
    i unmounted the card and remounted then it said card has problem and it needs to run “SETUP” hmmm (it didn’t say format card)
    so reinserted it and now phone picked it up easily.
    I tried to use the card and adapted in another laptop and it was also easily picked.
    so my first laptop sd card reader has somehow stopped reading 64gb card.
    I then bought a generic USB card reader for microSD cards and the windows also picked it up easily via new SD card reader in USB port.
    anyways, I copied the data from the card and formated the card in the phone and then transfer the data back into the card. and seems all is well.
    so what’s up with my laptop builtin card reader?
    I had reinstalled the drivers and still no go?

  12. I am running windows 10. Until about a week ago I was able to put an sd card in my slot and it worked. Now every card I use, it says that it needs to format the card…but doing so will erase all information. Any suggestions.

  13. I experienced this problem today. Having lost internal Audio after HP assisted in upgrade from Windows 7 64-bit to Windows 10, the first assumption made after inserting the SD card into Notebook and it didn’t read/recognize or indicate it was an activated device–was that Windows 10 was revealing another flaw. However(!), after a Cortana query as to reasons SD drive wasn’t indicated–there were blogs about BIOS and other convoluted SEARCHES for resolution requiring many IT Developer/Code Writer capabilities—I decided to use personal Trouble-shooting expertise, start with the card itself–my card actually was a Micro SD card (from a burner phone) and my Adapter for Full-Size card was a different (generic) brand–assumed One-adapter valid for any micro SD; since there was No Recognition of the SDcard with the microSD insert, the error posed that it was like using a Cadillac Key to try and start a Lincoln Continental and wonder why it didn’t work—so, The FIX(yay!!): Found the Actual authentic SD adaptor (same manufacturer as the microSD card)inserted the microSD (key) into the full-sized SD adaptor, pocketed it in the HP Notebook CardReader Slot–and BAM when I went to File Explorer–Listed under the PC Drives was the SD (activated/Recognized/Read-Capable)—Without any file tweaking or BIOS or system file machinations. So, this may work for someone–I hope so. The internal Card has to align with the cardReader slot: first microSD to MacroSD to PC Slot. Note: The microSD was able to be read in my phone as well as my TABLET –so files could be transferred via Bluetooth (if running PC/Notebook & wanting to use Bluetooth–search INTEL Windows 10 Bluetooth–download from INTEL site & check YouTube for help on how to proceed). Signed/A Solutionist

  14. I used my SD card on my PSP. I have not encountered the problem before but just recently. After I plug my SD card in the computer, it shows that it is connected but when i try to open it in my computer, it does not open and just hang up. Then I tried to plug it in back into my PSP but my PSP does no longer read the card. What should I do? Please, I really need your response. Thanks.

  15. Sometimes the problem may be hardware.
    I have a PQI ‘travel flash’ card reader which I have had for some years ( ~W98 era, possibly USB1.1). I frequently use it to read CF and SD cards. I have recently ‘updated’ to W10 and found that the reader wasn’t recognised when connected to a USB3 port (add-in card).
    Just as a test I connected it to a USB2 port (on the motherboard) and it worked fine.
    It may be that new USB ports cannot always successfully read older devices even if they claim to be compatible.
    I believe there is a drive voltage difference between the various USB specifications.

    Intel i5-750 on Gigabyte P55M-UD2, W10 pro 64
    PCI-e USB3.0rev1.0 Host card – NEC Renesas driver

    Not tried accessing via USB3 port in W7 yet.


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