In Admin tools, Storage. Its marked as Disk 2, Basic, 1862.97 GB Online 1862.97 GB unallocated. I know it should have about 1.4 GB of data on it. This drive was used as its the newest and passed the WD full testing 60 days ago. It was recognised in the pirated Win 10 Pro but not in this genuine Win 10 Home edition a few days after install of the OS. It did have a yellow flag in Devices and Printers but after a few restarts this flag has gone and the info says the device is working normal, which is not quite true at present.