If your USB flash drive is not copying files, format your file type to NTFS. However, you may also need to gain administrator permission to fix the issue.

Data stored on USB devices can sometimes be lost due to errors. If you find your files disappeared, don’t fret: it is possible to recover deleted files from a USB drive.

Laptops, external drives, and USB sticks are especially vulnerable to data theft, but with Windows and a few tools, you can ...

Safely ejecting SD cards and USB flash drives is standard practice to avoid potential data loss - at least on the surface, ...

If the USB file transfer gets stuck at 99% or any other percentage number while copying or moving the files to an external USB storage device, see this post.

Thisa guide is designed to show you how to use a USB drive with your Android Phone, this also works with an Android tablet as well.

Another problem you may experience if you don't properly eject your USB drive is other devices failing to detect it, which could make it difficult, if not impossible, to access your files elsewhere.