OS: Windows 7
its a custom build computer,
SAPPHIRE HD7870 graphics card
Asus SABERTOOTH 990FX R2.0 Motherboard.
8Gigs ram

Hello everyone,
I have accidentaly deleted my USB port drivers because none of the usb ports register my KEYBOARD or mouse when I get to the windows login screen. however if i open the BIOS on startup they both work. I don't know how to fix this because when I get the startup repair screen and it asks me to restore my computer to an earlier working stage i can not use my mouse or keyboard to click on yes. Also I do not have any Ps/2 keyboards/mice if that makes a difference.

Thanks in advanceRe-INSTALL your MBoard chipset drivers from the Driver CD.How? IM not that experienced with computers. my friends helped me build mineThe MBoard should have come with a Driver CD...if it didn't you need to get the correct ones from the MBoard manuf. site...
DLoad it to your PC and double clik the file and setup will run...re-boot after.
The other alternative is have your builder friend over to assist.I have a dvd but when I startup the computer using the dvd it gives me 2 options:
1) AMD AHCI/RAID WinXP Driver
2) FreeDOS command prompt

Which one do i choose?Don't boot to it...boot 1st then open Win Explorer and locate the chipset drivers and install them.I can't open win explorer because i can't use my mouse and keyboard once its booted upIf it's Win7 then boot to safemode...tap F8 repeatedly at powerup...don't wait for the Win logo...
Select Advanced boot options...
Then do a system restore to a date prior to the USB driver removal.When i press f8 on startup it tells me to select the boot device.Tap it repeatedly...that's not safemode.Theres no safemode popping up. no matter how many times i press f8 on startupSystem Restore at boot...Win7I CREATED a recovery Dvd but when it starts up when I have to like click on recover my keyboard and mouse dont work again.Well you may need to borrow/buy a PS2 keyboard then...Thats the last option?