 Hello!
Please, make a backup of the contents of the UFD, then:
1 - Turn off the PC.
2 - Remove the UFD.
3 - Restart the PC.
4 - Download CCleaner (free, Piriform.com, there portable version x64).
5 - The CCleaner pass (cleaning and register) to the PC.
6 - Enjoy.
Regards, Alfred. (Google Traduce).
