when i installed intel hd driver and restarted,the system boot loop problem arised and system restarted on windows loading screen every time i boot.
i went to safe mode and uninstalled just intel hd driver ,restarted system ,then system booted normally.
so the problem was with intel hd graphics Huh
my system specs are as follows:
GA B75M_D3H
core i3 3220
corsair vengeance 2gbx2
thermal master 450 watts power supply
THIS is gigabyte motherboard problem .they are incompatible with intel hd graphics.
if anyone uses gigabyte board with third gen corei processors,they will have same problem.
so in short i wasted my money buying gigabyte motherboard