Internal Hard Drive Not Showing Up In Disk Management. Sometimes your hard drive won't show up on your PC and that can be a big problem. If a hard disk contains no partition and all disk space is unallocated, it won't show in Windows Explorer.
The only solution is to update the device. Hard drives, be it new or old, internal or external, may not show up in File Explorer or Disk Management on your computer for some reason. Please read Exciting News: Seagate Hard Drive Data.
My SATA hard disk and two visible partitions were visible and could be accessed through File Explorer, but not at a lower.
When your hard drive is not showing up, try these points in order.
Its like it doesnt exsiest at all. So, verify if Disk Management tool can locate the external hard. There are a few scenarios that a Windows user might encounter when they install a new internal hard drive a.