I want to automate my backup procedure. Whenever I copy image files to my "images" folder, I want these images to automatically be copied to my two external hard drives as well.
I also want other actions I do in the "images" folder to be automatically applied to the copies I have on my two hard drives. (I.e. if I change a file name, I want this to happen automatically to the two copies, or if I create a new folder, I want this folder to be created on the two external hard drives, etc.)
I basically want my two hard drives to mirror whatever I do in my "images" folder.

Can this be done, and if so, how?

(I've got Win7 Home Premium, 64x.)

Thanks to anyone who can help me out!

File History does exactly this in Windows 8. It has been a while since I last used 7, go to Control Panel and check out the Backup feature there, perhaps it has such a function.

Sorry that I can't be much of a help.

I believe the key term you need is "sync" in your search. Unfortunately, I don't have much experience at all in that area.

Thanks for your replies.
I'll give SyncToy a try on Monday when I have access to my computer again, and I'll come back to mark it as the right answer if it works. :)

If not, at least I have a proper search term now. Thanks guys! By the way - do you know what (, if anything,) will happen if I password protect my two hard drives?

You can also use robocopy in mirror mode, but not sure that it can copy the changes to both external drives at the same time (you'd need to have two scripts, or just chain them so that once the first mirror operation succeeds then the second mirror one takes place).