Hello lmreid50,
When the USB flash drive does not show up in Windows 10system, it means that the computer fails to read the USB drive. You must make it readable again.
Update USB flash drive driver
- Connect the not working USB flash drive to PC, right-click on This PC/My Computer and choose Properties.
- Click "device manager" on the left taskbar > Expand USB Serial Bus controller, then you'll see a yellow exclamation mark, and right click on it and select "Update driver" or "update driver software".
- Click "automatically search for driver software online"...
Wait patiently and let the driver to be installed and reboot your computer.
After doing so, you can try to reconnect your USB drive to PC and check whether the USB drive can be detected or not.
Use Disk Management and make computer recognize USB flash drive
- Right-click on Start icon and select Search > Type control panel and hit Enter > Tab on Control Panel.
- Click Administrative Tools > Select Computer Management.
- When the window opens, click on Disk Management and then find the device in the drive viewer.
- Right click on the USB flash drive > Select Format to directly format the USB drive to reusable again.
Sometimes, you may also try to reinstall the disk driver for USB drive when it fails to show up on your PC. This method works on any Windows systems - Windows 10etc. Now, let's see how this works now:
- Right-click This PC/Computer > Properties > Devices Manager.
- Click on Disk driver > Right-click on General Flash Disk USB Drive (your USB flash drive) and choose Uninstall.
- Make sure the driver you'll uninstall is named "Flash Disk".
- Click OK.
Wait patiently to let the process to be finished. If it takes too long, you can remove the USB flash drive from the PC.
- Reconnect the USB flash drive to the PC and it will now reinstall new device software.
Then PC will read and recognize your USB drive. Then you'll see the USB drive shows up in Windows 10 and you can even view data inside the drive again.
Hope it helps, have a good day