I have a Lenovo system that has an apparently hidden backup partition that I cannot seem to access. The drive does not show up in Windows Explorer. I can see it if I go under the Disk Management tool in Windows, but I cannot assign a drive letter to it. If I try to duplicate it, it won't allow me to assign a drive letter to it either. I tried installing some third party apps to manage partitions and they can't do anything to it either. Only one of them was able to show me the contents of the partition, and it is the backups I am looking for to do a factory restore - but I cannot access the files to copy them or open them. Any suggestions? I know very little about dealing with paritions.