How to Reinstall MSOE.DLL

1. Click 'Start' and type 'sfc /scannow' into the search field.
2. Press 'Enter.' This opens the 'Windows File Protection' window.
3. Wait for the 'Windows File Protection' application to scan for corrupt DLL files. Once it finds that your MSOE.DLL file is missing or corrupt, it will reinstall it for you. Follow any prompts to reinstall it and reboot your computer once you have received the completion message.