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Just as jimlynch said last week, you can press the "Windows" and "PrtScn" keyboard shortcuts to take a screenshot on Windows 8 computer. As you'd expected, this method is definitely easy to use yet requires additional tools to make some annotations or even upload the screenshots for storage. To handle this, you can make use of the professional screenshot tools. It can meet all your needs of taking screenshots, making quick edits, uploading and sharing image.