Lets see a true example:
Q: The SD memory card won’t read on my computer.
Nothing comes up on my computer.
Any idea why this is happening or how it can be fixed?

Second, fix the SD card not reading on computers issue via several useful solutions.
Now, you are probably wondering:
How to recover lost data when PC cant read SD card?
Process 1.

MiniTool Photo Recovery is the bestphoto recovery softwarethat is fully compatible with Windows 11/10/8/7.
Major steps to recover data from the SD card that cannot be read using MiniTool Photo Recovery.
Launch MiniTool Photo Recovery, and then click theStartbutton to start the SD card photo and video recovery.

Now in the new window, it’s possible for you to choose theSettingbutton to specify needed file types.
After scanning, you will see all found files are displayed in a list of file types.
you’re free to preview pictures by double-clicking on them.

Then select all the needed pictures as well as other SD card data and press theSavebutton to store them.
Tip:It is strongly recommended to store selected files on another drive!
Otherwise, the lost/deleted data could beoverwrittenand become unrecoverable.

Tip:The free edition of MiniTool Photo Recovery can recover 200MB of data for free.
Thus, you should choose theadvanced editionif you want to recover unlimited data.
It provides you with concise interfaces so that it’s possible for you to carry out data recovery easily.
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Are you looking for a way to recover data from SD card formatted as internal memory?
Get detailed instructions from this step-by-step tutorial.
Process 2.

Fix SD Card Cannot Be Read by PC
Method 1.
Remove the write protection
When the SD card is write-protected, Windows may not read or recognize it.
Format the SD card
Formatting the SD card is the best way tofix multiple SD card errors.

you could format an SD card in File Explorer or using a third-party partition manager.
Note:Formatting will erase all data on the disk.
Before performing the following steps, you better ensure all files on the SD card have been recovered.
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Format the SD card in File Explorer.
PressWindows + Ekey combinations to open File Explorer.
In File Explorer, right-hit the SD card to chooseFormat.

Next, specify thefile systemand volume label, and check the option ofQuick Format, then press theStartbutton.
Finally, you might punch theOKbutton when you get a message saying: Format Complete.
Thus, all work has been done.

Format the SD card using MiniTool Partition Wizard.
If youcannot format the SD cardin File Explorer, you’re able to turn to a professionaldisk managementtool.
MiniTool Partition Wizard is the best choice.

Now download MiniTool Partition Wizard to format your SD card.
MiniTool Partition Wizard FreeClick to Download100%Clean & Safe
Launch MiniTool Partition Wizard to get its main interface.
choose the target SD card that needs to be formatted and scroll down to clickFormat Partitionfrom the left panel.

Finally, remember to click theApplybutton in the lower left corner.
In the new Command Prompt window, typechkdsk E: /f /r /xand pressEnter.
Here you should replaceEwith your Micro SD carddrive letter.

Next, lets talk about another issue SD card cant be read by phones.
Part 2.
Now, check the following situations to see what the problem is and how to solve it.
SD chip is dirty.
you should peek if the metal area is black or if there is any spot on it.
The wires inside the slot are rusted or bent over.
Some phones supporthot plugging.
The slot is squeezed.
For some ultrathin phones, the design of the slot is very delicate.
The slot will be squeezed if the thickness of the battery exceeds a certain requirement.
SD card is formatted improperly.
Not all phones support the same file system.
For instance, NTFS wont be read on some models of phones.
SD card gets infected with a virus or spyware.
If the SD card is infected by viruses, your phone will no longer be able to read it.
For more information, kindly refer to Part 1.
Then click onRecover from SD-Card.
Connect the SD card to the computer via a card reader, and click onNextto continue.
Now, MiniTool Mobile Recovery for Android will analyze the SD card.
After analyzing the memory card, it will automatically scan for the data saved on the SD card.
After scanning, select all needed files and then select theRecoverbutton to store them to a safe location.
The phone is broken.
Sometimes, your phone cant read your SD card because your phone is broken.
In this case, you should send your phone to repair.
Hope these tips help you.
We will solve it as soon as possible.