Hi,
Since the laptop worked without any problems for a month after installing Windows 7, chances of a hardware problem are less.
From the description of the problem it seems that there is some malware/spyware infection or the Windows installation is damaged.
1) Kiindly download and perform a complete scan with a virus/malware removal tool.
You can download the free version of Malwarebytes Anti-Malware from:
http://www.malwarebytes.org/mbam.php
After download and installing the program, kindly update and perform a full scan with the program.
2) If the problem persists, you will have to re-install the OS.
Hope this solves your problem. Thanks for using
FixYa.
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