Download EasyBCD install it. You will need Net Framework 2.0 SP1 or higher installed also. Open EasyBCD and add an Windows 7 entry Make sure you select the drive Windows 7 is installed on, like shown on the image. Click Add Entry Go to the Edit Boot Menu select your default OS by check marking which one you want to be the default, then make sure the t"boot default OS after options is selected 30 seconds etc...