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The laptop was faster that he had never been but then after a few days started to freeze in almost all programs. So I defragmented which took about 14 hours and a complete analysis of the system, which was another 9 hours. I also downloaded a program that converts Youtube videos in files. Then, I installed MS office 2013 and updated Norton in the same week and got a lot more message "not responding". I got the message 'not only respondents' for a long time, but they became more frequent, especially in Internet Explore but then also in Google chrome and Word. I have a Samsung laptop, RV515 (1.65 GB and 4 GB of RAM, 500 GB) running on Windows 7 and MS Office 2007 Academic.
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Error message: MS office click-to-run stopped working and laptop keep freezing.
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