Windows 10: Partition missing in Disc Management Windows 10

I have a Seagate backup plus hub 8tb external hard drive which is used purely for video and music storage, films, series and the like. It is partitioned into 6 main partitions, but now only 5 of them are showing up in explorer, disk management and diskpart and I have no access to the partition. I have also tried uninstalling it in device manager, but the computer will still only find the same 5 partitions on reinstallation. The partition was there, hence how the files were copied to it and the partition and files are still there on the drive, which I know as they are still accessible, as are t

:)

 

W7 Hard drive partition issue

to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

- press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
- diskpart <-- start the windows command line partition management tool
- list disk <--- list the installed hdds in this computer for the next step
- select disk 0 <- might have to replace 0 with the number of the correct disk
- clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
- create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
- exit, exit to exit diskpart and the command prompt
- click refresh in partition manager and select your newly created partition and install to that

 

Windows Recovery partition missing from Volume list of Disk Management

Following the latest updates 18363.719 and 18363.720, I noticed that in the Volume list of Disk Management, the Windows Recovery partition created when clean installed Windows 10, was missing.
It does show in the graphical representation of the drives, though.





When run reagentc /info to check recovery partition existence it shows as partition 4 and it also shows in diskpart





Any ideas?

 

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