Vista Install from Hard Disk if You have Copy of vista in your Hard disk, it's work. i have tested. If you want to install from a USB HDD or Memory Stick onto another disk, it's much simpler, steps 1 to 3 should give you a bootable Vista installer. Steps 5 and 6 are required if the target of the installation is the same disk you are installing from. 1. Format the target disk as NTFS. 2. Copy the boot and sources directory and the bootmgr file from the Vista DVD or Image to the root of the newly formatted disk. 3. Start a command prompt and issue the following commands - where x is the drive letter of the newly formmated disk. x: cd /boot bootsect x: 4. Boot from the disk - Windows setup should load 5. Choose the Repair option - skip through the prompts until you can start a command prompt. 6. Issue the following commands c: cd /boot del bcd bcdedit /createstore cd ../sources setup 7. Continue as you would with a normal installation.