How do I perform a System Recovery on my HP Z440 Workstation running Windows 7?

To recover from the factory recovery partition, turn off the workstation and disconnect all peripherals except the monitor, keyboard, and mouse, then power it on. As soon as the HP logo screen appears, repeatedly press F11 until the 'Windows is Loading Files...' message appears, then follow the on-screen instructions in HP Recovery Manager. Be aware that System Recovery completely erases and reformats the hard disk drive, deleting all data, so you should back up all user information beforehand and always attempt System Restore before using System Recovery. (Page 23)