Mod Edit: Split from https://www.bleepingcomputer.com/forums/t/616727/old-hdd-now-only-appears-as-system-reserved/page-2#entry4526242 - Hamluis.
I'm sorry for your lost.
- Press + X to access the Menu and click Disk Management
- Expand the Disk Manager window to show all the blocks of the external drive
- Post a screenshot of the window please
I had the same problem, however the disk management was not showing any unallocated space. Below is the screenshot.
I renamed the drive name to J from K, and the system reserved thing is not showing anymore. However I am still not able to use the drive. Attached is the screen shot after the renaming.
Edited by hamluis, 06 July 2018 - 06:42 AM.