Best free programme to create image of hard drive?

I've just installed Windows 10 and the mobo drivers and i want to create an image. I'll be using my old GPU untill Vega comes out so i need to create the image before i install any GPU drivers. Thanks

Reflect is fine

A linux live cd and the dd command

Keep it simple, use the one build into Windows 10.

- Click the "Start button" in Windows, then type "Backup" and click "Backup Settings" in the search results
- On the next window click "Go to Backup and Restore" at the bottom
- Click "Create a System Image" in the left hand menu and follow the on screen instructions

To perform a restore boot from your Windows 10 USB stick/install DVD
- click "Repair your computer" instead of Install
- on the next screen click "troubleshoot" and then "advanced options"
- finally choose "System Image Recovery" and follow the on screen instructions.

If you have a working Windows 10 at the time you don't even need the USB key/DVD, simply hold down the "SHIFT key" on the keyboard while you are on the Windows desktop, click the "Start button" and then the power symbol/restart. You will end up on the same blue repair screen as you would have when booting from the Windows 10 USB stick/DVD.

thanks everyone