I suggest that you try rebuilding WMP's library by following these instructions. First note that resetting the library will make you lose all current play counts, and possibly ratings too. Then, follow these steps:
- Reboot the PC.
- Open the Start Screen, type
services.msc
, and press Enter. In Services, find theWindows Media Player Network Sharing Service
. If its status isStarted
, double-click the service and clickStop
. - Open the Start Screen, type
%LOCALAPPDATA%\Microsoft
, and press Enter. This folder will open up in Windows Explorer. - In this folder, delete the
Media Player
folder. If you can't see the folder, then it's probably hidden. Set Explorer to show hidden files and folders, and to show protected system files. - Start WMP, your library will have been reset and will be rebuilt. Check if the issue still occurs.