▸The SD card/pen drive becomes RAW file system, not allowing you to access it. ▸You can see the contents of your SD card in your system, but unable to add, delete, modify or copy data in your SD card because it is set into read only mode. ▸Windows computer recognized your SD card successfully, but you cannot see any data within it, and the hard drive says it needs to be formatted. ▸When you attempt to read the drive, no data appears along with an error prompt “Read / Write error on SD card”, which means you cannot read data from this device. The file or directory is corrupted and unreadable.” When accessing them in Windows File Explorer. ▸Receive an error message saying “SD card is not accessible. When they get damaged or corrupted, you will be irritated by one of the following issues: What if pen drive or SD card is corrupted?Īlthough pen drives and SD cards have developed as popular data storage media, they are prone to damage.