How does Win7 close the security warning that pops up when opening a file

  

1. Press Win+R to open the run, enter “gpedit.msc”, click OK;

2. In the Open Local Group Policy Editor window page, expand to User Configuration. --Management Module --- Windows Components -- Attachment Manager;

3, find and open the "included class table of medium dangerous file type", modified to "already enabled", in the options Add .exe, click Apply and OK.

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