Removing InstallMac from Safari

Home page

1. Open Safari Preferences
2. In the General tab, find the Home Page label.
3. In the text box next to it, replace the current address (URL) with the address of web site you want to set as home page
4. Alternatively, you can open Safari to any page you want to set as home page, and then open Preferences and click the Set to Current page button.

Default Search Provider

1. Open Safari Preferences
2. Go to the extensions tab.
3. Find the InstallMacApp extension and click the Uninstall button.