When installing multiple operating systems on one computer, problems may arise related to the choice of the hard disk, which should be the system one. There are special programs that allow you to change the boot disk or partition.
Necessary
- - Live CD;
- - Partition Manager.
Instructions
Step 1
First, try changing the boot partition of your hard drive using the capabilities of the Windows Seven operating system. Open the start menu and go to the computer control panel. Open the "System and Security" menu, select "Administration".
Step 2
Go to the Computer Management menu and select Disk Management. Now right-click on the graphic image of the partition that you want to set as bootable. Select "Make section active".
Step 3
After restarting the computer, this section will be loaded initially. If you do not have access to the "Administration" menu, then use the additional program. Download and install Paragon Partition Manager application. Please note that you need to find a version that is compatible with the installed operating system.
Step 4
After the download is complete, select the "Power User Mode" item. Select the required disk with the right mouse button and select "Make partition active". Now open the "Changes" menu and select "Apply Changes".
Step 5
In the event that you are unable to start the operating system, use the command line to change the boot partition. Launch the Live CD or Windows Vista (Seven) installation disc and open a command prompt.
Step 6
Type the command diskpart and press Enter. Now enter the command list partition. A command prompt window will display a list of existing partitions on this hard drive. Remember the number of the partition that you want to make bootable. Enter the command select partition 3, where 3 is the number of the desired partition.
Step 7
Now enter the command active. Restart your computer to verify that the correct boot disk is selected.
