Deleted E: and Expanded C: on a Windows 11 NVMe Drive: Recovery and TRIM Limits
TL;DR:
Stop using the laptop immediately because deleting the E: volume and extending C: on a Windows 11 NVMe SSD subjects the old data to active overwriting and irreversible TRIM commands.
● Extending the live volume allows Windows to write new data over the former E: address range, and any blocks already cleared by SSD TRIM/discard commands cannot be recovered even if scan tools still detect old filenames.
● Protect the remaining evidence by keeping the system shut down; do not boot into the affected Windows installation, undo the partition resize, run repair commands, or install recovery software directly on the C: drive.
● Conduct any DIY sector-level imaging from an independent environment to save findings to a completely separate disk, or inform a professional lab about the exact failure sequence, BitLocker encryption status, and specific WD PC SN560 NVMe hardware.
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Stop using the laptop now. In this Windows 11 partition mistake on Reddit, the user deleted the E: NTFS volume on an NVMe SSD and then extended C: into the newly unallocated space. The device is a WD PC SN560-class NVMe in an ASUS laptop; the user later confirmed C: was already extended. This is not a harmless missing drive letter. The deleted partition's former address range is now included in a different live volume.
Why Is Extending C: More Serious Than Merely Deleting E:?
Deleting a partition can remove its file-system entry while leaving some old content untouched. Extending another volume across the same area changes where Windows can write new data, and the operation or later system use can disturb the original metadata or file blocks. On an SSD, TRIM/discard commands add a separate limitation.
Microsoft's delete-notification documentation describes how NTFS can notify supporting storage hardware that freed clusters no longer contain needed data. TRIM is not a reversible undo command. Changing the setting after the loss cannot bring back blocks that an SSD already discarded. Whether it happened to the particular E: data is not established just from the post.
What Should You Do Before Another Windows Operation?
Protect the Remaining Evidence
- If the files matter: shut down and avoid booting back into the affected Windows installation, installing tools on C:, undoing the resize, or running partition repair commands.
- If professional recovery is affordable: tell the lab the exact sequence, that this is an NVMe SSD, and whether BitLocker/device encryption was enabled. Ask about realistic TRIM limitations before paying for a long software search.
- If attempting a controlled DIY assessment: operate from an independent environment and destination, take a sector-level image when feasible, and inspect any surviving former NTFS structure on that copy. Save anything found to an entirely different disk.
Recoverit's general lost-partition guide covers ordinary recoverable logical partition loss, but deleting E: and extending C: on an SSD does not guarantee any remaining data. A found partition label or filenames in a scan is not proof of recoverable file contents after possible TRIM and overwriting.