Umeed hay San it'd members khsariayat say hongay

Experts
Meray dost k pass HP 7800 core2duo
Hay us me win xp install thi kuch dair chalny k baad screen kbhi blue show hoti kbhi isy jaisy image scratch or phir kbhi restart ho jata by

An new window install Kr raha hun to
Setup start ho jata hay
Drive format or install k bad copying files
Phir restart honey k baad
Jb copying files (setup will complete in approximately 28 min ) tak phonchta
Hay tou blue screen show hoti hay us per khuch likha hota hay jo k wazeh dikhai nahi de rahs plz help karain.

System:
HP 7800
HD 80GB+40GB
Ram 3GB
Win: win xp sp3

Thanks in advance......