Intel Graphic card not listed in my Device manager

[venkat888]

hi;
My laptop config:
Sony vaio (E- series) VPCEB24EN with intel i3 M350 @2.26 GHz processor, 512 MB ATI graphic card, 3Gb RAM.

PROBLEM:
Recently my laptop harddisk got repaired, i had thosiba MK3265GSX HDD with (320GB storage area, 8 MB buffer size & 5400 rpm). I replaced it with seagate ST9750420AS(750 GB, 16MB buffer size & 7200 rpm). Also previously i had only windows 7 Home basic 64-bit so, i purchased home professional with 64-bit.
After installing my new OS i downloaded my drivers s/w, everything got installed except my intel HD graphic driver & it showed the message "minimum system requirement is not met" Also, in my device manager intel graphic not appeared in 'display device'. But, my ATI graphic driver is working properly.
Also, i tried with my older recovery CD which had home basic but when windows tried to install setup my harddisk is not detected since i changed it recently.
i tried every possible solution but couldn't able to find exact reason. plz help me...
for ur info, for sony vaio Bios does not have advanced option so i couldn't view whether graphic card is there or not

 

[kegobeer]

Where did you get the Intel drivers?

 

[venkat888]

i got drivers s/w from official sony website...

Also from intel website i tried by running "intel driver utility" & "system identification utility" but couldn't able to install intel graphic driver s/w & also the utility didn't detected intel HD graphic...