In properties, the drive showed 0 bytes total space and its file system is unknown.When I choose the format option, it didnt do anything and told me: There is no disk in drive E.
This passage will tell you some common symptoms, reasons and effective solutions to USB flash drive file system unknown issue. In this case, the operating system cant recognize its file system and all files on the drive turns to be inaccessible. Have important files on the USB Didnt make any backup before As any operation will erase the original data, the first thing is to recover lost data from corrupted USB flash drive. It supports 500 file formats, including document, picture, audio, email, etc. For example, you already have a Drive E on the computer, but the USB drive letter also changes to Drive F, the operating system feel confused and give you error message Please insert a disk into Removable Disk. ![]() For example, F drive is your target drive you want to select and it is Volume 3. That means the drive has some physical problems. Then the last choice is to send the USB flash drive to local disk repair company or replace it with a new one. There are various reasons for USB flash drive file system unknown issue, such as virus attack, unsafe ejection, bad sector, power failure and some physical problems. ![]() Secondly, dont drag your USB directly and always safely remove USB device after transferring files. Thirdly, dont plug your USB flash drive into an unknown computer. Flash Drive File System And Windows Software And CheckLast but not least, download a reliable antivirus software and check your USB flash drive usually. Apart from USB flash drives, similar problems in other USB devices like USB device not recognized are also common. ![]()
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December 2020
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