i have problem during installation Windows 7...  

You need to go to Dell support from where you can download any drivers you need, in particular your Sata Controller drivers.

http://support.euro.dell.com/support...hs1&l=en&s=dhs

i downloaded the drivers tell by Sedril but i think it is not my problem....drivers are not matching i copied them on USB and booting with Win7 ISO and when the error comes i scan the drivers from usb drive here is the list but when i checked the "Hide Drivers not compatible with my Hardware" the whole list hide...if anyone have the drivers which i need please give me..here is my Motherboard manufacturer...
Intel Chipset D915 DELL with 3.0 processor...and SATA hard drive

Please use the link I gave you for Dell support.

As you have a Dell computer, it is best to install Dell drivers.

please give me the exact link of my dell Gx280 SATA Controller driver....i go to dell support many times but can't find the required drivers....if any information is required about my PC please tell me i am very sad about this issue...

Drivers and Downloads | Dell [United Kingdom]

Above is for Windows XP SATA driver. There was no choice for Windows 7.

You only have to search the site, it's all there.

Drivers and Downloads | Dell [United Kingdom]

You want the Maxtor Utility driver under the SATA category. Just click the download button and download the driver.

Save it to your hard drive first, and then install it.

cyclic >>>the file is not found comes...

Did you bother to check the link I gave you?

ignatzatsonic>>>i am using windows 7 but there is no windows 7 option....why??now what is the solution of my problem???