Why Can’t I Download Files to My USB Stick Anymore?

It sounds like your USB drive might be failing, which is common if it's been used a lot. Try reformatting it or running a disk check (chkdsk) to identify any errors. Also, fully power off your computer and unplug it for a few minutes to reset everything. If that doesn't work, try a different USB port or another computer to see if the issue persists. Good luck!

I had a similar experience where my drive seemed fine, but after a reboot, the OS got corrupted and files weren’t saved properly. Drives can fail in various ways, even if they seem to be working at first. It's a headache, but data recovery or a new drive might be the way to go.

Just a thought, but if you bought that USB stick from a questionable seller, it might be a fake or just broken. Sometimes, cheaper drives don’t hold up well, and this could be a sign of that. Keep an eye on it!