Marking a partition as active on a basic disk means that the computer will use the loader (an operating system tool) on that partition to start the operating system.
At various times the need to mark a partition as active arises. This will show you two ways of doing so.
Through Disk Management
into the start menu, and press enter.
2. Right click on the partition you want to mark as active, and select Mark Partition as Active.
If you can't boot into Windows, use method 2.
Using DISKPART in Command Prompt
1. Boot into your Windows 7 installation or repair disc.
TIP: If you don't have a Windows 7 installation DVD, you can Create a Repair Disc.
When you get to the language screen, press Shift+F10
, then list disk
after diskpart is loaded.
Enter select disk [
number of the disk the partition is on]
5. Enter list partition
, followed by select partition [
6. Type active.
There you go! You can now close the command prompt and reboot your computer.
TIP: You can also use this method from within Windows. Type cmd
into the start menu and press enter.
Through Partition Wizard
Download a copy of the Partition Wizard Bootable CD
Boot it up, right-click on the partition, and select Modify>Set Active