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Hi Denis, Did you have a chance to record or note the error code or error name shown on the blue screen? This information is essential to understand and troubleshoot the blue screen error on your computer. Once you have identified the error code, you can use the page below to learn more about the specific blue screen error and how you can fix the problem: http://www.reviversoft.com/blue-screen-helper/ Typically, restoring or undoing any recent hardware, operating system or software related changes helps fix such blue screen errors. Let us know what you find. James