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Usb Flash Drive Error - Volume Does Not Contain Recognized File System


I plugged in my usb flash drive into a computer using windows 7. It always prompts me to scan and fix or cancel. I canceled every time, but i got annoyed with it popping up every time, so i told it to scan and fix. A loading screen came up so i patiently waited. After completion it asks to format my usb flash drive. I can't format it though because i have homework files and all my other personal files on there. So i canceled the format, but every time i plug it into my computer it asks t format it. I even plugged it into a computer running on windows xp and it wanted to format it.

When i try to run it without formatting it it says, "e: is not accessible. The volume does not contain a recognized file system. Please make sure that all required file system drivers are loaded and that the volume is not corrupted. " My question is, what did windows 7 do to my flash drive and how do i recover my data?


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