Hi, I'm Israel M., I'm an independent consultant.
Welcome to the Microsoft community!
Step 1. The easiest way to unlock a file marked as untrusted is to uncheck the option "Always ask before opening this file" and then clicking on the "Run" or "Open" button in the "Open file - Security warning" window ”;
Step 2. If the “User Account Control” dialog box is displayed, click the “Yes” button to continue;
Step 3. Another way to unlock a file marked as untrusted is to right-click on it. In the context menu, click on the item “Properties”;
Step 4. In the "Properties" window, check the "Unblock" option and then the "OK" button.
The next time you run or open this specific file, you will no longer see the "Security warning" and the file will run immediately.
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Best regards,
Israel M.
Outside consultant