Windows 7 upgrade- 15% copying files

[juggalomike]

Alright so i have been trying to upgrade from home premium 64bit vista to W7 with my upgrade disc and i am out of ideas. I am using a Sony Vaio FW series. Every time i try to run the upgrade i get an error saying

"Windows cannot copy files required for installation. The files may be corrupt or missing. Make sure all files required for installation are available and restart the installation. Error code: 0x80070017"

I get this message at the copying files stage at 15%.

 

[Gamingphreek]

Is there a scratch on your upgrade disc? A hair? A smudge? Are you sure you bought the upgrade disc from a reputable source?

-Kevin

 

[juggalomike]

Is there a scratch on your upgrade disc? A hair? A smudge? Are you sure you bought the upgrade disc from a reputable source?

-Kevin

thats the thing, the disc seems to be in perfect condition, but i decided to download W7 online and use that to upgrade, because luckily i have the product key so i just need the software