I Installed a new copy of windows onto a friends computer. Before installing the copy both hard drives were detected and could be seen in 'Computer'. However after installation only the original C: drive was detected under 'Computer' and the other drive can only be seen under device manager and disk management. The drive is described as "Healthy (Recovery Partition)". We have tried in a different PC and the same problem occurred. Uninstalling and Re installing the hard drive from device manger didn't help, and neither did trying to create a new volume, as right clicking the partition under disk management doesn't give the option to it only says "help".