可以使用第三方软件读写
Ext2Read
支持Ext2/Ext3/Ext4和LVM，但是只读的。
Ext2Read is an explorer like utility to explore ext2/ext3/ext4 files. It now supports LVM2 and EXT4 extents. It can be used to view and copy files and folders. It can recursively copy entire folders. It can also be used to view and copy disk and file

Features
View and copy Ext2/Ext3/Ext4 files and folders.
Ext4 Extents support.
LVM2 Support
Recursively copy whole directories
LRU based block cache for faster concurrent access

DiskInternals Linux Reader for Windows
支持Ext2/Ext3/Ext4, HFS 和 ReiserFS，只读。
There are a number of evident merits of the program, which you should know. First of all,DiskInternals Linux Reader is absolutely free. Secondly, the program provides for read-only access and does not allow you to make records in file system partitions. This guarantees that the interference in an alterative file system will not affect the work of Linux later. Apart from this, it is necessary to note, that it gives you an opportunity to use common Windows Explorer for extracting data. A preview option for pictures is one more pleasant point, which is worth mentioning.
How to get safe and quick access to any file systems? DiskInternals Linux Reader is an easy and short way to solve the problem!
While saving, it ignores file security policies. It means that it is possible to access absolutely any file on a Linux disk from Windows. The program can create and open disk images.
Linux Reader is 100% FREE.

使用方法（ Ext2Read）

第一步

首先将含有Linux文件系统的移动硬盘或本地硬盘连接好，并打开 Ext2 Volume Manager 软件。

第二步

右键点击目标盘符，选择“配置EXT2卷属性”，对文件系统卷进行相关设置，如图：

第三步

保存设置后，双击打开我的电脑，就可以看到相应的盘符，并可以对Ext文件系统进行读写操作。