Simple implementation of Dual-system boot with win7 menu startos currently when installing startos5.1 in the partition interface "advanced" option to select the partition where the boot device is installed, the options are "mbr" and "linux root directory". If you only select "linux root directory", there is no linux boot menu after installation, adding a new entry to the tool easybcd does not show the linux menu, so either select "mbr" or both. We recommend that you select this option in the win7 environment and use the tool easybcd to configure the boot menu, you can also use the following method to add a linux boot menu to reinstall Windows 7 later. Www.2cto.com but note that win7 needs to be re-activated. In this case, we hope startos can solve the problem in a later version of win7 + startos dual system and use the win7 boot menu to guide startos: After startos5.1 is installed, the Start menu is startos, but it does not move. Restart Windows 7 to download Easybcd2.2 and the green version. Open Easybcd. On the "BCD deployment" tab of Easybcd2.2, click the "Write MBR" button. After the restart, the startos Startup menu is no longer available. Only the Windows 7 Startup menu is available, note that you still need to reactivate Windows 7! Select "Add new entry" in Easybcd2.2, select Linux/BSD card, type: GRUB2, name customized startos5.1, drive: partition 7 (Linux-8GB) that is, the root partition of the startos System (selected based on the Root partition where you install startos. Do not select "Automatic Location and loading". Otherwise, Windows 7 will be started. Finally, click "Add new entry" to add startos5.1 to the Windows 7 Startup menu. However, after startos is enabled in the Windows 7 Startup menu, there will still be a level-2 menu, that is, the startos Startup menu. In the grub. cfg file of startos, www.2cto.com sets ylmf to start by default, and the wait time is 0. In this way, select ylmf in the win7 boot menu to go to startos. In the future, you can reload Windows 7 as expected. You can use Easybcd2.2 to add a startos. When installing startos, it is best to select both the boot to MBR and the installation to the root partition, because you can select both. The results are the same. In addition, if you only select to install to the root partition, even if the startos startup Item is added to Easybcd, startos cannot be started even if the root partition is selected for the drive.