I was in device manager under computer management, and I was updating all my drivers. I got the the driver PCI-to-PCI bridge, which I had three copies of. I updated only two, but when I did they immediately disappeared off the driver list, and are nowhere to be found. I restarted my laptop, but they still aren't on the driver list.
Edit: It's okay now, I managed to fix it by installing drivertoolkit, backing up the remaining pci-to-pci bridge, and restoring it. All three are now showing up.
Edited by EnigmaUser, 30 July 2016 - 12:46 PM.