1. If you don’t have the Windows 7 DVD, you can make a repair CD by going to Control Panel > All Control Panel Items > Backup and Restore > Create a system repair disc (in the left pane) > pick your optical drive (if more than one) and click Create disc.
2. To create an image of a drive, go to Control Panel > All Control Panel Items > Backup and Restore > Create a system image (in the left pane) > Choose hard disk or optical drive then start the backup.
3. To recover a hard disk image, boot from the Windows 7 DVD (or the previously made repair CD in 1 above), choose ‘Press any key to boot from CD/DVD’ and Windows will start to load the files. Select your language, time, currency and keyboard then click ‘Repair’ in the bottom left corner, now choose System Image Recovery and follow the prompts. It’s quite a quick process, three partitions on a SATA 160GB disk took 20 minutes.