Question D: drive suddenly disappeared and shows as "unallocated" in Disk Management

paradigm11

Reputable
Nov 16, 2018
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0
4,510
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Hello all,


The other night I shut down my computer with no issues then turned it back on the next night to find that my D:\ drive was missing. After trying to do a couple restarts it still wasn't coming up, so I tried reseating it and did it again with similar results.

After doing some googling and digging I found the Disk Manager, which pops up and says to initialize DISK 0 and I can see my drive sitting there but it says all 2TB are unallocated.

Picture of Disk Management

Does anyone have any ideas on how I can safely recover the data or get it working again? Initializing the disk erases it but it was almost full and has hours of work that I can't just re-download. To the point that I usually make weekly backups but got lazy during covid and its been a few months since I synced it to my backup.

Most the research I do just comes up with those dime-a-dozen robotic voice how tos showing me nothing but how to click initialize.
 

paradigm11

Reputable
Nov 16, 2018
3
0
4,510
0
No, CDI shows it as unknown :/

Looking at its properties in Disk Manager I see these events:

  • Device not migrated
    • Device SCSI\Disk&Ven_Samsung&Prod_SSD_860_EVO_M.2\5&295797c9&0&030000 was not migrated due to partial or ambiguous match.

      Last Device Instance Id: SCSI\Disk&Ven_HITACHI&Prod_HUA721010KLA330\5&2c4dbacb&0&010000
      Class Guid: {4d36e967-e325-11ce-bfc1-08002be10318}
      Location Path:
      Migration Rank: 0xF000FC000000F120
      Present: false
      Status: 0xC0000719
  • Device Configured (disk.inf)
    • Device SCSI\Disk&Ven_Samsung&Prod_SSD_860_EVO_M.2\5&295797c9&0&030000 was configured.

      Driver Name: disk.inf
      Class Guid: {4d36e967-e325-11ce-bfc1-08002be10318}
      Driver Date: 06/21/2006
      Driver Version: 10.0.19041.789
      Driver Provider: Microsoft
      Driver Section: disk_install.NT
      Driver Rank: 0xFF0005
      Matching Device Id: GenDisk
      Outranked Drivers:
      Device Updated: false
      Parent Device: PCI\VEN_1022&DEV_7901&SUBSYS_87471043&REV_51\4&2b9cc193&0&0241
  • Device started (disk)
    • Device SCSI\Disk&Ven_Samsung&Prod_SSD_860_EVO_M.2\5&295797c9&0&030000 was started.

      Driver Name: disk.inf
      Class Guid: {4d36e967-e325-11ce-bfc1-08002be10318}
      Service: disk
      Lower Filters:
      Upper Filters:
 

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