Where did my Windows E Drive go?

Edy Gonzalez 0

My windows E drive with 900 GB just disappeared out of thin air when I attempted to create a storage pool. That shouldn't happen.

Anh Khau0429 90 Reputation points

2025-05-11T17:17:17.7366667+00:00
Hey, just wanted to clarify – was the E: drive you mentioned a physical disk?

If so, it’s likely that the E: drive has been added to a Storage Pool, so it will disappear from File Explorer. When a drive is added to a pool, it will be grouped as part of the storage pool and it no longer shows up as an individual volume.

To figure out exactly where it went, you can try these step-by-step checks:

Open Disk Management (Win + X > Disk Management):

If the disk is there but missing the E: letter → just assign a new drive letter.

If it’s showing as “Unallocated” or not showing up at all → run the following in PowerShell:

get-physicaldisk

get-storagepool

get-virtualdisk

→ If the E drive has been pooled, you’ll see it listed here.

If the disk is completely missing: check Device Manager or BIOS – it might be a hardware issue or the disk isn’t being recognized.

In short: Most likely, the drive has simply been added to a Storage Pool, so it’s hidden from File Explorer. Please be aware that your data on drive E: may be formatted when it was added to storage pool, meaning there is potential data loss. Hope this helps!

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