Convert cannot gain exclusive access to the drive letter drive, so it cannot convert it now. Would you like to schedule it to be converted the next time the system restarts (Y/N)? %0
A user or system process is using the specified drive. User processes are processes executed by running applications. System processes are processes from volumes with active paging files. An active paging file cannot be locked.
Stop other running applications and try the conversion again. Or, type Y and Convert will schedule the volume to be converted the next time the system restarts.