💾 Restore Accidentally Deleted Partition

Last updated: October 31, 2025

Recover partitions accidentally deleted in Disk Management, reassign drive letters, and recover data from unallocated space

Overview

Accidentally deleting a partition in Disk Management can seem catastrophic, but your data is likely still there. This guide shows you how to reassign missing drive letters, recover deleted partitions with DiskPart, find data in unallocated space, and protect partitions from future accidents.

What this helps with

What to expect: Hard difficulty • usually about 30-60 minutes.

This is one of 30 Recovery & Emergency Fixes in the WindowsHelper library. The full step-by-step fix for this is in the WindowsHelper app.

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