BSOD when using torrent and while watching movie......

Hey guys, im having this problem where BSOD appears every time i use my laptop.... I sometimes download torrents and watch movies using Splash Pro and all of a sudden, it crashes and BSOD appears.... The error code was kernel_data_inpage_error and the code was 0x00000007a......... Im not an expert in computer and i only know the basics of how to use my laptop. The specs are :

Windows 7 (64-bit)
NVIDIA Ge Force G105M
Intel Core 2 Duo processor T6600
4GB Ram

I have done chkdsk using cmd and the hard disk is clean.... Please help me out......

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