Did you have Windows 8 installed on this PC (i.e., did it come with Windows 8 installed)?
If so, go in bios and change (boot) setting from uefi to legacy.
Mohammed Rahman
Try to make changes to BIOS as suggested by experts above. If they doesn't work, try below suggestion.
Download the Windows 7 SP1 (same flavor as yours - basic/home premium/professional/ultimate).
Burn the ISO onto a disk and install OS with this newly burned disk.
It will install the OS and will not throw errors (as the drivers are integrated into SP1)
** As you are downloading the same flavor, you will not have any issues activating your copy of windows.