+ ## GUID used as the signature of FTW working block header.\r
+ # Include/Guid/SystemNvDataGuid.h\r
+ gEdkiiWorkingBlockSignatureGuid = { 0x9e58292b, 0x7c68, 0x497d, { 0xa0, 0xce, 0x65, 0x0, 0xfd, 0x9f, 0x1b, 0x95 }}\r
+\r
+ ## GUID used to build FTW last write data hob and install PPI to inform the check for FTW last write data has been done.\r
+ # Include/Guid/FaultTolerantWrite.h\r
+ gEdkiiFaultTolerantWriteGuid = { 0x1d3e9cb8, 0x43af, 0x490b, { 0x83, 0xa, 0x35, 0x16, 0xaa, 0x53, 0x20, 0x47 }}\r
+\r