My computer got crashed, so i thought to reinstall the windows 7 and accidentally i installed it without removing the crashed one. So, how do i delete crashed windows 7 from my PC.

i have already installed windows 7. And now i have Two Windows 7 installed in my computer and i want to delete one.When you the partition (Hardrive) you want to install windows 7 to make sure you click "format" before you install it.
lol i mean to delete windows 7 not other programs that can be deleted from Control PanelSTART MENU (bottom corner) > Control Panel > Programs > Uninstall a program > then find what you want to uninstall (should be in ABC order).
thanks man :hug:1. Open Disk Cleanup by clicking the Start button. In the search box, type Disk Cleanup, and then, in the list of results, click Disk Cleanup.
If you're prompted to choose a drive, click the drive you just installed Windows on, and then click OK.
2. In the Disk Cleanup dialog box, on the Disk Cleanup tab, click Clean up system files.
If you're again prompted to choose a drive, click the drive you just installed Windows on, and then click OK.
3. Select the Previous Windows installation(s) check box, and any other check boxes for the files you want to delete, and then click OK.
In the message that appears, click Delete Files.