Ext2Fsd Project

Open source ext3/4 file system driver for Windows (2K/XP/WIN7/WIN8)

Ext2Fsd 0.65 was released !

with 2 comments

Features implemented and bugfix since V0.64:

    1, major performance improvements (small files meta-operatios)
    2, memory pressure handling for buffer-head structures reclaim
    3, back support for Windows 2000 (i386, 32bit)
    4, no bothering user with notification message for Ext2Mgr
    5, project improvement: Ext2Mgr to be built with WDK or VS2008
Supported Ext3/4 features by 0.65:
    1, flexible inode size: > 128 bytes, up to block size
    2, dir_index:    htree directory index
    3, filetype:     extra file mode in dentry
    4, large_file:   > 4G files supported
    5, sparse_super: super block backup in group descriptor
    6, uninit_bg:    fast fsck and group checksum
    7, extent:       full support with extending and shrinking.
    8, journal:      only support replay for internal journal
    9, flex_bg:      first flexible metadata group
   10, symlink and hardlink
    11, Mount-as-user: specified uid/gid supported
Unsupported Ext3/4 features:
    1, journal: log-based operations, external journal
    2, EA (extended attributes), ACL support
Features to be implemented in next release:
   1, Extents management improvement
   2, EA and ACL security checking
Files descriptions:
Ext2Fsd-0.65.exe:       setup wizard for Windows systems (win2k, Winxp, 
                        Vista, Win7, Win8, Win10, Server 2003, Server 2008/R2)
Ext2Fsd-0.65.7z:        Batch setup package in 7-zip
Ext2Fsd-0.65.zip:       Batch setup package in zip

Download link:
Files checksum:
C:\Works\Ext2fsd\0.65>sha1sum Ext2Fsd-0.65*
cf9114b7951de6c902e20911fd81a4599343ab9c *Ext2Fsd-0.65.7z
9f479c37d30bad0b9724a43717adf8e661e42b6d *Ext2Fsd-0.65.exe
d4d5d4f261299a853acbd4c615db8a270aa89576 *Ext2Fsd-0.65.zip
    The driver may crash your system and ruin your data unexpectedly,
    since there might be software conflicts and I could only test it
    on some of the popular platforms. You should use it with care and
    use it at your own risk!
Matt <mattwu@163.com>

Written by Matt

April 10th, 2016 at 11:05 pm

Posted in Ext2Fsd,News

Tagged with , ,

2 Responses to 'Ext2Fsd 0.65 was released !'

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  1. Hi, Matt, I really like this software. I’ve been using it on a dual-boot Win10 and Ubuntu machine to a limited extend. The reasons that I can’t always use it are as follows:

    1. Version 0.65 crashes my Windows 10 to an IRQL_NOT_LESS_OR_EQUAL blue-screen.
    2. Version 0.64 corrupts my ext4 partition. fsck on Ubuntu seems to bring the partition back, but I don’t want to rely on that.
    3. Version 0.64 has occasional problems with writing and executing files.


    13 Apr 16 at 10:09 am

  2. Hi Hash, thanks for your update. I’m working on 0.66, will release it soon.

    Q1: Please try this updated version before 0.66 is released:

    Q2: It’s likely caused by delay-cache-flushing, which was already improved in
    0.65. Could you describe details of your operations ? I didn’t re-produce
    similar issues with my computers.

    Matt Wu


    13 Apr 16 at 11:20 am

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