How to Block Unsigned Application: This video will show you how to prevent User from running unsigned or validated software on that computer or workstation. We will be using local security policy to change security option with with administrative privileges.
If you don’t have local security policy, you can use the registry editor to make changes.
HKEY_LOCAL_MACHINE – Software – Microsoft – Windows – CurrentVersion – Policies – System
ValidateAdminCodeSignature
change value to 1
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