What damages can occur to my computer or my flash drive such as pendrive if I don't safety remove it before plugging it out after any read or write operation on my pendrive also if there is no read or write operation and then if I plug out my pendrive, then what damage can occur
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If you unplug a flashdrive during a write operation, the file will become damaged and you lose its contents. Next time you open it, it'll give you an error.
If the write operation occurs on the file table itself, it may cause the flashdrive to become labelled as empty telling you that you need to format the drive.
LPChip
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For unplugging, the OS will sync the data during the unmount operation. Thus, if the disk is unmounted (assuming you in fact do have full hardware support) you can power off the disk then unplug it without risk of data loss or corruption.
A partition map can be corrupted by an incomplete write operation. If it was just the partition table that was corrupted, a good data recovery application should be able to get things back.
