This is a step by step guide to tell you how to capture Windows 7 screen.
Step 1: Run this Windows 7 Screen Capture and click shortcut to capture screen. Click top option "Capture Screen" in following sub-menu.

Then it pops up a new toolbar, Click button
in following toolbar.

Step 2: Use image editor.
After clicking button
in following toolbar, we will see a new image editor, as following show, functions of this image editor is as strong as photo shop, it has brush tool, eraser tool, font tool, etc. With this Screen Capture Video, we can reduce the screen resolution and color quality.

Step 3: Save your screenshot.
Click "File" on left top area, then select the third choice "Save File" and find a output directory to keep it. When you want to see how many screenshots you have taken, just click "View Snapshot",
and all screenshots you have taken is show in pops up window.
Major Functions
Windows 7 Screen Capture assist you capture screen, region, window.
Support 5 recording types: random region, specified window, full screen, fixed size, fixed region.
Record your webcam sessions.
Records anything you see on your screen and select any portion of the screen or the entire desktop for recording.
Records Picture to JPG, PNG and BMP, saves pictures as JPG, PNG and BMP.
Support hot keys to starts and stops recording at times set by user, you can set the screen recorder to start and/or stop recording at certain times.