"recent change in software/hardware" please help

[Foxtrot_01]

I recently built a new computer with these specs

AMD Athlon II X3 3.2 Ghz
Seagate 2TB Serial ATA HD 7200/64MB/SATA-6G
Kingston 8Gb DDR3 1333Mhz
Gigabyte AM3+ AMD 460G Micro ATX AMD motherboard
Ultra LSP450 450W ATX power
SATA DVD-RW

I had installed windows 7 on the harddrive prior to building the computer, I put everything together and
I powered it up, it beeps, first screen is the Gigabyte BIOS page, then it seems it's about to start windows and then jumps to "recent change in software/hardware" screen, where I have the option to either start normal or safe, etc. (I cant go back to last know working config because Windows 7 was freshly installed.)

I hit enter and again same thing.

I have a repair DVD so I can boot from the disk and hit Repair. I put it in the drive, I powered on, hit F9 to change the BIOS so it will boot from the CD/DVD, then enter, again, same "recent change in software/hardware" comes up.
So I decided to power down and power up, DVD-ROM light comes on and then beep, gigabyte bios screen comes up, scripts come up, says boot from CD/DVD and then windows logo for about a sec and again "recent change in software/hardware" comes up, this is an ever ending cycle.
I have noticed that the DVD-ROM only lights up for a couple seconds only when I turn the computer on, when the screen shows Boot from CD/DVD I dont see the light on, this is a new SATA samsung DVD-RW that I had for about a year, I never used it before becuase my old computer didnt have any SATA. This new gigabyte motherboard is all SATA.
I am not sure if the DVD-RW is working, either way I ordered a new DVD-RW SATA that should be coming in today.

Regarless of this, what is usually the problem that triggers the "recent change in software/hardware", the build is pretty standard.
Any ideas on what is going on? is it hardware or software problem?

 

[rgd1101]

So you install windows 7 on the hard driver on another computer then put it in the new build?
Install windows 7 on the new build.

 

[noidea_77]

Unfortunately there is no "pretty standard". Windows does the first stage of customization at install time. Not to speak about hardware specific drivers installed afterwards. As rgd1101 says: always install windows on the target machine or run a "sysprep" on the source machine.