It's usually in the top row of keys. This takes a snapshot of the entire screen and copies it to the clipboard.  If you're using Windows XP, see the Using Windows XP method. Depending on your laptop, the ⎙ PrtScr key may be shared with another key, such as one of the F keys. If this is the case, you'll usually have to press another button that says Fn as you press ⎙ PrtScr.  This opens Microsoft Paint, an image-editing program from which you can print the screenshot. The Paste option is on the "Clipboard" panel in the toolbar along the top. You will now see your screenshot in MS Paint.  The screenshot is now saved as an image file. If you'd like to send a copy of the image to your printer, follow these steps:  Click the File menu. It's at the top-left corner of the app. Click Print. Select your printer if it's not already selected. Click Print.

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Write a summary of the previous text in Chinese:
按键盘上的PrtSc键。 打开“开始”菜单并点击所有程序。 点击附件菜单，并选择画图。 点击主页选项卡，并选择粘贴。 点击文件菜单，选择保存。 命名文件并点击保存。 打印屏幕截图。