diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_0_Env_Setting.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_00_Env_Setting.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_0_Env_Setting.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_00_Env_Setting.pptx
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_1_Registry.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_01_Registry.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_1_Registry.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_01_Registry.pptx
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_2._WinEvt_XML.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_02._WinEvt_XML.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_2._WinEvt_XML.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_02._WinEvt_XML.pptx
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_3_WebHistory_SQL.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_03_WebHistory_SQL.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_3_WebHistory_SQL.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_03_WebHistory_SQL.pptx
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_4_Email_USB.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_04_Email_USB.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_4_Email_USB.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_04_Email_USB.pptx
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_5_USNJournaling.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_05_USNJournaling.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_5_USNJournaling.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_05_USNJournaling.pptx
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_6_Network_Shellbag_Jumplist.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_06_Network_Shellbag_Jumplist.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_6_Network_Shellbag_Jumplist.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_06_Network_Shellbag_Jumplist.pptx
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_7_NetworkDrive_ShellBag.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_07_NetworkDrive_ShellBag.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_7_NetworkDrive_ShellBag.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_07_NetworkDrive_ShellBag.pptx
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_8_CD_$MFT.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_08_CD_$MFT.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_8_CD_$MFT.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_08_CD_$MFT.pptx
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_9_Win_searchDB_csvsql.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_09_Win_searchDB_csvsql.pptx
similarity index 100%
rename from NIST_Data_Leakage_Case/NIST_Data_Leakage_9_Win_searchDB_csvsql.pptx
rename to NIST_Data_Leakage_Case/NIST_Data_Leakage_09_Win_searchDB_csvsql.pptx