To fix runnable file error 75 error, follow below steps:.
1.First of all click the Start button to view the Start Menu. Then choose the Control Panel option.
2.After click Control Panel, enter into System and Security, then click into Windows Update.
3.When you enter in, pick Change settings in the left pane, then you can see the setting page. As you can there are some options, you can set it according to your need.After you change settings, keep in mind to click OK.
1.Click Startup and type cmd in the searchbox, then double click on cmd.exe.
2.Type gpupdate and press enter, then you can destroy virus on your computer.