ถ้าจำไม่ผิดก็คงเป็น
1. Right-click the file or folder, and then click Properties.
2. Click the Security tab, and then click Edit.
3. To set permissions for a user that is not listed under Group or user names, click Add, type Everyone as the name of the user or group, click OK, select the permissions as Full control, and then click OK.