Getting BSOD daily :( help wanted

[pirates1323]

Specs:
Windows vista home premium
HP intel core 2 CPU 2.00 ghz
1 gb ram
160 + 40 gb hard disk
intel gma 950 graphics..
all os updated..

whenever i use my computer for more than like 6-7 hrs... while browsing internet or viewing things on my hdd... then i get a blue screen.... i had disabled restart after crash so that i can post errors here... here what it says

driver_irql_not_less_or_equal

afd.sys 8AE4A363 base at 8AE49000, Datestamp 4549b341

im so frustrated by this .. I have doubt if this is because of my old hdd of my old pc...

[pirates1323]

i will attach minidump file in my next post

[wizrulz]

BSOD SOLUTION TUTORIAL SECTION- BY ANANDK