MS Office warning message

2019-10-06

1. Intro

I got this warning message when you open a file.

2. Solve

Add Registry Key

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Excel\Security]
"ExtensionHardening"=dword:00000000

[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\PowerPoint\Security]
"ExtensionHardening"=dword:00000000

[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Word\Security]
"ExtensionHardening"=dword:00000000

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