My Dell Optiplex 960 (DDO9XL) is a dual boot, and an important partition on one of the boots disappeared when I was adding a new partition. I've been using Hiren's BootCD PE to access and run some diagnositic utilities trying to find a solution to the problem. This new versions of Hiren's is based on Windows 10, and I haven't been able to access the internet using it's included browsers. The PE Network Manager identifies my network adapter card but lists it as disconnected. I looked in Device Manager and the Network Adapter card is shown as working properly, but the Ethernet Controller is shown as not working.