diff --git a/Basic_Computer_Skills_for_Forensics/3_Linux_command_line_tutorial.pptx b/Basic_Computer_Skills_for_Forensics/3_Linux_command_line_tutorial.pptx
index 8677f48..f4e0a72 100644
Binary files a/Basic_Computer_Skills_for_Forensics/3_Linux_command_line_tutorial.pptx and b/Basic_Computer_Skills_for_Forensics/3_Linux_command_line_tutorial.pptx differ
diff --git a/NIST_Data_Leakage_Case/NIST_Data_Leakage_00_Env_Setting.pptx b/NIST_Data_Leakage_Case/NIST_Data_Leakage_00_Env_Setting.pptx
index 89fc39b..47120dd 100644
Binary files a/NIST_Data_Leakage_Case/NIST_Data_Leakage_00_Env_Setting.pptx and b/NIST_Data_Leakage_Case/NIST_Data_Leakage_00_Env_Setting.pptx differ