Need help with Drivers and my OS.

[NeedSupport]

I have recently replaced a motherboard, graphics card, and CPU on my computer and need to reinstall my OS. I had Windows 7 on it so I am trying to reinstall it for now. It can't install due to not having Drivers on the computer, so I got the drivers I need from MSI since I got the motherboard from them. I have a Z97 and downloaded the drivers and put the usb in. I tried installing the OS again and it still couldn't find the drivers so I still can't install the OS. What should I do?

 

[cin19]

I have recently replaced a motherboard, graphics card, and CPU on my computer

If you have the AMD PC before, you need do the clean reinstall win7. Check the link for how to http://pcsupport.about.com/od/operatingsystems/tp/install-windows-7.htm
If your computer is from the OEM like HP, dell, etc. You can't use the old win7 for the new MSI z97. You need buy other win7 for the new PC.