Password Protected Screensaver / Wallpaper ?

Is there some way, in Windows 7, for me to just do some type of 3 key pattern then a screensaver / wallpaper of my photos from a predefined album will appear for a few seconds each and keep showing, until I key in a password? I'm sure I heard about it somewhere a few years ago? How do you do this?

 

If you have a password to log in to Windows, then all you do is set the screen saver to photos and also in the screen saver settings require password by checking on resume display login screen. The ctrl+alt+del and select lock the PC & you screen saver (pictures) should come up until the sleep timer for the monitor kicks in. Also you can lock the PC win Windows Key + L.

 

Thank you. How do I set the screensaver to photos please?

 

Select Photos (as above), then Settings> Browse to folder you want to display. Save & Apply.

 

Thanks foogoo, managed to find that in the appearance section, that part is done, you've been great on this, but just one more thing - I have 2 screens in use all day, one laptop and one separate monitor coming from the laptop, how do I get the images to appear just on the main monitor please?