i cant install windows 7

[Karan_270]

i tried 2 different windows 7 cd but i cant installed it .I alredy format my c drive and when i try to install its stuck on expanding windows file stage at 9%.
i try use with pen drive but it didnt boot .

 

[Karan_270]

I found Solution. its problem in overclock of my Dvd drive ..i tried 10 or 12 tines its install seasy!!