invalid FAT16 reserved sector count Facility: EFI$CP, The OpenVMS EFI Partition Control Program Explanation: Per EFI FAT specifications, the FAT16 volume can have any reserved sector count greater than zero, but the value is usually 1. Specifications allege other values can cause incompatibilities in certain circumstances. User Action: No action is required. The valid is valid, and the volume will be correctly processed by this utility.