Usb flash drive 32GB reduced to 500M - Resolve_32g内存变成500m-优快云博客

本文介绍了一种解决方法，用于将被用作Linux启动盘且显示容量异常（仅500M）的32GB U盘恢复正常。通过使用diskpart.exe工具进行磁盘清理、创建分区、格式化等步骤，成功使U盘重新达到正常容量并可以正常使用。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Summary
Problem and solution
Reference

Summary

My USB flash drive has 32GB memory size, created the Linux Boot system on the USB, now change back to normal USB flash drive usage, cannot be readable and it shows only 500M memory when formatting, use diskpart.exe solved the problem.

Problem and solution

Refer to this Link, go to “Start”, input “cmd”, then “diskpart.exe”

Microsoft DiskPart version 10.0.14393.0

Copyright (C) 1999-2013 Microsoft Corporation.
On computer: LENOVO-XHL-PC

DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          238 GB  1024 KB        *
  Disk 1    Online           29 GB      0 B

DISKPART> sel disk 1

Disk 1 is now the selected disk.

DISKPART> clean

DiskPart succeeded in cleaning the disk.

DISKPART> create partition primary

DiskPart succeeded in creating the specified partition.

DISKPART> format fs=fat32

  100 percent completed

DiskPart successfully formatted the volume.

DISKPART>

DISKPART> assign

DiskPart successfully assigned the drive letter or mount point.

DISKPART> exit