Okay, this may be a little complicated...
I recently bought a Kingston 64gb USB stick to store video files on. For whatever reason half my files would no longer play on my TV when I transferred them from a 16gb (even though they played fine on the old USB).
I read online that formatting to Fat32 might help so I downloaded a program to do that (EaseUS) on my Windows 10 laptop and formatted successfully. Just to be sure, I ejected the USB, re-inserted. USB recognised. Fat32. Mission accomplished.
I then put the USB in an old PC I only use to download stuff, running Windows XP. USB still worked fine.
I returned the USB to my Windows 10 laptop, and it wasn't recognised. Got a tone to acknowledge I'd just plugged something in, but that's all. No error message, nothing. Like the USB just wasn't there. Tried it in the second USB port. Still nothing. I returned it to my Windows XP machine, it showed up fine. Just won't work on my laptop, even though that's were I formatted it in the first place and it worked fine the first time I unplugged and reinserted.
Any ideas how to remedy this?