Fix: You need to format this drive before you can use it.
While working with your usb flash drive/pen drive/stick/(whatever you call it) have you ever encountered this error?
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Well don't format it. There are ways to at least recover your data.
One way to recover your files is to use a freeware application called Find and Mount. This app has saved my skin a couple times. See the link below.
Link: Find and Mount (At the time of this writing it is freeware with a pro version. Unfortunately it seems this project has been dropped.)
Do note that common reasons for this is
- Your usb drive is failing
- Not properly ejecting your usb drive
- Or quite possibly a virus/malware infection
So if you haven't yet, click that cancel. Download Find and Mount and install it. After that open find and mount.
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Select the usb drive by clicking and click scan. Go for the Intellectual scan.
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Now look at the scan result.
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See that there are no visible partitions. But there is a found partition. Select the found partition [Partition 1] and click Mount As [assign a drive letter]
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From here you can copy your files. It will be slow as this is the free version. My transfer rate was choked to 512 Kbps, but at least I get to copy my files, format the drive and retransfer the files again.
Hope this saves your skin too.