Sd card not recognise in any pc ( but recognised in mobiles) My 32 gb memory card is readable in any mobile but it is not at all detecting in any pc or laptop. I can view, delete, add anything from any mobiles but when I tried to insert the same sd card to different laptops even using different card reader then also it not at all detecting. How to fix this?
According to you description of the situation, either of the two thing could have happened:


Your SDcard is formatted in a way that windows (assuming you use that) doesn't recognise. Ext4 is really common amongst Linux device (including android) but is not recognised by windows. If you can connect to the SDcard using a mobile in MTP mode, I recommend you do that and then format the card to FAT32 for compatibility with windows. Alternatively, you could use an Linux Live partition to use the card and format it.
Your readers might be broke (unlikely to happen on multiple devices suddenly in such short interval but a possibility). Try using a different card to confirm. This will also be signified by drive probably not appearing in Disk Management.



  To format a drive in windows:
  
  
  Press Win Key + x and then Disk Management on windows 8 and above. In Earlier windows, right click computer > Manage and then select
  disk management in the left panel.
  Right-click on the SDcard partition to format and click on Format.
  Select the file system as FAT32. Click OK to format the drive.