win 7 instalation fail

i download the windows 7 (7100.0.090421-1700_x86fre_client_en-us_Retail_Ultimate-GRC1CULFRER_EN_DVD.ISO) .when i install on my PC i got the error message at the 2% level ,file missing or corrupted .(error code:0x8007041).i need immediate help.thank you

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