Ext2Fsd Project

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

WIN10 TH2 Mount Issue

with 61 comments

Here’s a temporary solution:

  1. Download Ext2Mount from http://ext2fsd.com/soft/Ext2Mount.zip
  2. Run Ext2mgr (Ext2 Volume Manager) to get the device name of your EXT volume (see PIC 1)
  3. Start Windows cmd or (WIN key)+r, then execute: Ext2Mount mount \device\… (see PIC 2)

PIC 1: Get Volume Name with Ext2Mgr

PIC 2: Run Ext2Mount

Written by Matt

November 26th, 2015 at 5:53 pm

Posted in Ext2Fsd

Tagged with

61 Responses to 'WIN10 TH2 Mount Issue'

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  1. thank you 🙂 nice effort to get the community some very fast give help 🙂
    ohh i wait with Win7 on usable Reactos .. i hope comes more developers ! 😉
    again, thank you very much !
    best regards


    26 Nov 15 at 8:14 pm

  2. Works like a charm, thanks a lot.
    Just one thing – Avast antivirus is identifying the Ext2Mount.exe as potentially harmful. I guess that’s because I don’t have to give it admin rights to mount the drive or something like that.


    27 Nov 15 at 2:59 am

  3. The link for ext2mount does not work…


    27 Nov 15 at 10:43 am

  4. Should be http://ext2fsd.com/soft/Ext2Mount.zip, just corrected. Thanks.


    27 Nov 15 at 12:34 pm

  5. I have now solved the error when creating zero length files:

    In file create.c in function Ext2CreateInode add a call to
    ext4_ext_tree_init() in the if block shown below:

    /* Force using extent */
    if (IsFlagOn(SUPER_BLOCK->s_feature_incompat,
    Inode.i_flags |= EXT2_EXTENTS_FL;
    ext4_ext_tree_init(IrpContext, NULL, &Inode);

    Bo Brantén

    28 Nov 15 at 9:41 am

  6. New e2fsck that fixes the zero length file error: http://www.acc.umu.se/~bosse/e2fsck/

    Bo Brantén

    30 Nov 15 at 2:17 am

  7. Great job, but where is the .exe pls ?


    1 Dec 15 at 3:47 am

  8. I only compiled a Linux version of e2fsck so far but the diff is there so anyone can compile there own version, let’s see if Matt helps to compile it for Windows or I would need to find out how to do it.

    Bo Brantén

    2 Dec 15 at 4:13 am

  9. Has anyone compiled this? I have an ext4 disk where some files are corrupted (video files, can’t be copied or viewed). I used ext2fsd to move all other files from the disk, and was hoping to be able to fsck the disk. Any suggestions?


    8 Mar 16 at 3:22 pm

  10. Better booting into a Linux system to do the fsck. Or indert your disk to a running Linux box.

    For Windows, you can try: https://github.com/matt-wu/e2fsprogs/tree/master/bin


    8 Mar 16 at 4:09 pm

  11. Wonderful to have this tool! I have one very minor issue, really only reporting it in case it points to something important: When I download a file with Firefox to an ext2fsd-managed drive, it consistently fails. The real filesystem is ext4, and is on an external hard drive connected by USB, and I am on Windows 7 32 bit.

    Router Gray

    2 Dec 15 at 11:09 pm

  12. Will their be a new version released for windows 10.

    Ryan Evan Ramos

    7 Dec 15 at 7:18 pm

  13. please release a new version to fix this with out this i can’t play my wii games from my linux partition.

    Ryan Evan Ramos

    8 Dec 15 at 8:09 am

  14. Described method does not work on Win 10


    14 Dec 15 at 8:20 pm

  15. Same issue with mine. Launching the program to get the device name doesn’t work. The program opens and then closes immediately so I can’t see the drive.


    15 Dec 15 at 4:44 am

  16. Somehow the described method only worked once for me. After a restart I have to use this procedure to mount the drive as the Y: drive.

    1. Mount as fixed HD using command (find partition XXX number in Ext2Fsd): “Ext2Mount.exe mount \Device\Harddisk1\PartitionXXX Y:”
    2. In Ext2Fsd go to “Mountpoint Management” and mount drive as “DefineDosDevice” on “Z:”
    3. In Ext2Fsd go to “Ext2 Volume Management” and mount drive as “Automatically mount via Ext2Mgr”on “Y:”
    4. In Ext2Fsd go to “Mountpoint Management” and mount drive as “DefineDosDevice” on “Y:”


    15 Dec 15 at 4:39 am

  17. Hi, I am using ext2fsd for a while and it worked great until the last Windows update from yesterday.
    I was not able to mount the ext4 partition after the update so I tried to uninstall it and then re-install it again. This was not successful. I downloaded the latest version of ext2fsd from this website and I was not able to install it. I extracted it first, I launched the Ext2Mount.exe and it closed immediately. I tried to run it as admin, same thing.

    Here’s some information about my OS:
    Edition: Windows 10 Pro
    Version: 1511
    OS Build: 10586.29

    Thank you for your support. 🙂


    15 Dec 15 at 1:31 pm

  18. Does any other version works for you? Because I have the same issue.


    24 Jan 16 at 1:45 am

  19. Thanks!
    please keep up good work.


    16 Dec 15 at 7:59 pm

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    16 Dec 15 at 8:47 pm

  21. hi!
    thx for the workaround! but i cant share the HDD! system cant find device…. any fixes?


    19 Dec 15 at 7:41 am

  22. Hi all,
    Since today I’m struggling with the same problem as most of you: Explorer in Windows 10 doesn’t show the EXT3 disk from my Media Tank.
    The EXT3 disk shows up both at the Ext2 Volume Manager and Ext2explore.
    But since the update today Windows 10 doesn’t show the disk in Explorer.
    Unfortunately I found out that I can’t transfer files from my Windows 10 harddisk to the EXT3 disk on my Media Tank by using Ext2explore.
    I’ve tried the temporary solution mentioned above with Ext2Mount, but I can’t get it to work.
    Is there something wrong with my path: C:\Users\Bart\Downloads\Ext2Mount\Ext2Mount\Ext2Mount.exe mount\device\harddiskvolume7
    Thank you very much for your help.


    29 Dec 15 at 4:42 am

  23. In my case, it works as follows:

    I run a command like this:

    “K:\freeware\File Management\Ext2fsd\Ext2MountW10TH2\Ext2Mount\Ext2Mount.exe” mount \Device\HarddiskVolume12 S:

    Then I have to restart and close the Ext2fsd Volume Manager for it to work.

    If I let the Ext2fsd Volume Manager on, the drives are inaccessible.


    1 Jan 16 at 4:04 pm

  24. I have to add that one command must be issued at a time and close the cmd.
    If I issue several in a batch, it seems not to finish the first command, so it doesn’t go to the next one, but the mount is done.

    I have a rack with several disks, based on a controller. Always, Windows displayed the first drive in it, so the shares won’t work for others. IMHO, Windows became a very unstable thing since longtime…


    1 Jan 16 at 4:58 pm

  25. I’m surprised that nearly 2 months later and we’re still without a proper fix. It seems trivial since Ext2Mount is able to do it so easily, but I’m still missing the ability to set which drive letters get assigned.

    Aaron Franke

    19 Jan 16 at 12:46 pm

  26. I think this calls for the release of a new version of ext2fsd for Windows 10.


    20 Jan 16 at 2:34 am

  27. Once I start the program Ext2Mount.exe it will disappear. I’m using Windows 10 64bit. Tried to run it as being Administrator also. What could be usefull?


    23 Jan 16 at 2:09 am

  28. same ploblem plz help!!!


    30 Jan 16 at 2:35 am

  29. I too having issues on win 10 pro 64 bit.


    2 Feb 16 at 10:44 am

  30. I got the same problem at windows 8.1.
    What I find strange is that it says run: Ext2mgr
    Where do I fined Ext2mgr?? No link?

    Help please.


    4 Feb 16 at 8:33 pm

  31. I use Ext2Mount instead of Ext2mgr and it works for the moment.


    5 Feb 16 at 4:51 am

  32. Example:

    “K:\Ext2fsd\Ext2MountW10TH2\Ext2Mount\Ext2Mount.exe” mount \Device\HarddiskVolume10 P:

    Just need to know the path to the Ext2Mount.exe, which is in the archive, then the disk volume, found in the Ext2 Volume Manager, as in the attached picture to the article.


    5 Feb 16 at 4:54 am

  33. I recommend to use Run utility only, not Command Prompt, to execute that command.
    (I use it for mounting the usb drives – the disks must be active, having just been connected and already rotating at full.)

    if I issue that command in Command Prompt of the Ext2mount folder, Explorer doesn’t show the mounted drive in his window, and only the system commands (cd, dir, copy) of Command Prompt can be used then to access and navigate the newly mounted ext4 drive.
    But I’ve found by chance that if I place the command right in the field of the Run utility and click OK, Explorer immediately shows the mounted drive in his window and gives full access to it. Funny it is…

    Good that such using Run utility helps me well enough on Windows 10586 a.k.a. TH2 a.k.a. 1511. But it fails when I try it on Windows 14257, with no of any success still. Only the Permanent MountingPoint can help me on 14257, as if it were a fixed disk, not a usb drive. In this case, the re-settings in ext2fsd and re-boots are needed quite often though.

    Keep the fingers crossed, it’s only that we can do actually… 🙂


    7 Feb 16 at 4:38 am

  34. I’ve just found that ‘only’ this format of the command doesn’t work on 14257:
    C:\Programs\Portable\Ext2Mount\Ext2Mount.exe mount \Device\Harddisk23 Q:
    (a Question marked Local Disc appears in Explorer window – no access)

    But this format is doing well on my 14257 (if executed in Run utility only):
    C:\Programs\Portable\Ext2Mount\Ext2Mount.exe mount \Device\Harddisk4\Partition2 T:
    (Exolorer immediately shows the ext4 partition in its window)

    So I recommend to use the ‘mount \Device\HarddiskX\PartitionY’ format.
    command diskpart (in cmd.exe) will show you the number X (lis dis sub command)
    numbers Y are starting from 1

    And I cam use only RUN utility (Win-R) to execute that format of the command successfuly, NOT command prompt (cmd.exe). I dom’t know why but it really helps me yet.


    7 Feb 16 at 12:48 pm

  35. Thank you, this tip made the difference since I was instinctively running from the command prompt.


    2 Apr 16 at 12:38 am

  36. I have Windows 10 Build 10586.71, 32 bit and I followed the step when I try to run my command is like:

    C:\Users\Revod\Desktop\Ext2Mount\Ext2Mount.exe mount \Device\HarddiskVolume4

    my OS show a popup that said:
    “This app can’t run on your pc”


    7 Feb 16 at 6:58 am

  37. The app is 64 bit, probably, so it won’t run on 32 bit systems.

    I can use the command prompt or a batch file without problems.
    I am administrator on my system, which is a TH2 up to date.


    8 Feb 16 at 7:25 pm

  38. Within Linux, use gdisk to change the partition type of the ext partition to “microsoft basic data” (0700). This does not appear to impact Linux (I’m still able to mount the partition).

    Then, in Windows 10, use the Windows Partition Manager to assign a drive letter to the partition. Do this instead of using the ext2fsd volume manager.

    This worked for me, but do so at your own risk. I take no responsibility if this kills your data.

    Anonymous Coward

    13 Feb 16 at 7:43 pm

  39. Thanks a lot! I’ve started testing this wonderful method and it works perfectly. So amazingly nice and easy solution.


    16 Feb 16 at 8:21 pm

  40. Anonymous Coward, can you describe in more detail how to use Gdisk to change to (0700)? which command is it? is it “t”? when I select that option it tells me that MBR BSD APM and GPT are “not present.”

    Please advise…


    25 Feb 16 at 6:33 am

  41. It’s sad that ext2fsd project encourages hacks rather than correcting its code.


    17 Feb 16 at 2:26 pm

  42. great, it work on my win10, thanks a lot


    23 Feb 16 at 3:44 am

  43. Hi Somehow the described method only worked once for me as well, I dont understand bassie112 instructions, can someone provide a workaround string, windows wants to format the drive!
    This line worked once: “C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Ext2Fsd” mount device\harddiskvolume5


    28 Feb 16 at 10:09 pm

  44. Looks like the March 1, 2016 update of Windows fixed this. I say this because we have a file system where the DefineDosDevice was failing in our mount code but when I reran after this update things appeared to work again.

    So, assuming that DefineDosDevice returning an error when the mapping already existed was the problem, it now appears to tolerate the pre-existing mapping and goes on to do all of the other good things it does (notifying Explorer, etc).

    Eric Berge

    4 Mar 16 at 4:27 am

  45. I’ve just tested it too, and Windows 10 Pro Insider Preview 10.0.14279 has no of these Automatic Mount issues, as I can see.


    8 Mar 16 at 12:32 pm

  46. I confirm.


    7 Mar 16 at 2:53 pm

  47. Thanks a lot 🙂 keep up the great work !


    9 Mar 16 at 1:36 am

  48. Great website! It looks really good! Maintain the good work!|

    nba 2k16 mtdb

    18 Apr 16 at 1:21 pm

  49. I installed the 0.68 version on windows 10… Not only does it not run, the uninstaller doesn’t run either. Woohoo!


    16 Aug 16 at 6:42 am

  50. Same issue! 🙁

    Any help?


    9 Sep 16 at 5:02 pm

  51. Same problem — In Windows 10, Ext2 volume manager crashes without displaying anything; uninstaller hangs — can’t exit!

    Robert Chase

    2 Nov 16 at 2:07 am

  52. I can’t access my ext3 partitions after a Windows 10 update. I also tried all the solutions suggested in the topic.


    28 Oct 16 at 8:49 pm

  53. For future reference. The Update issue with windows 10 can be worked around switching to compatibility mode (for the program itself) running it as a win XP sp 3. Full functionality


    3 Nov 16 at 12:35 pm

  54. I tried switching compatibility mode to win XP sp3 and still nothing happens.
    Program will not open

    Andrew G

    8 Nov 16 at 10:40 am

  55. This programme does NOT work under Win 10 at all. Not even under XP Sp 3 .
    It is a shame!!
    I have tried everything including mount app that does NOT mount anything.
    Useless app, useless documentation.


    21 Jan 17 at 12:19 am

  56. I’m also unable to open this program on Windows 10 (14393). When I run the program it asks for admin permissions, I click yes, and then the program never appears. I also set the partition code to 0700 to see if that would make a difference and it didn’t.

    Is there really no way to get this working on Windows 10? This issue has been around for over a year now and the program is completely unusable for a bunch of users.


    22 Jan 17 at 11:10 pm

  57. Método FIT Thank you for sharing with us.


    18 Apr 17 at 1:39 pm

  58. 0.68 Does not run on Windows 10 64Bit. Same as everyone else.


    1 Aug 17 at 12:13 pm

  59. Install Ext2Fsd-0.68 . It runs smooth with Windows 10, installs ok, service ok and service manager start auto and settings applied saved ok!

    Avoid Ext2Fsd-0.69.1040-07.21!!! It is not stable. After installation don’t restart and wait few seconds to get the driver error (unsigned). It wont do anything of the above as the Ext2fsd 0.68 driver. Driver can not be installed on the latest Windows creators edition as it gives an UNSIGNED DRIVER Error and it is blocked.

    You can possibly try the advanced boot and disable checking and retry install BUT WHY bother since 0.68 works like a charm!


    19 Aug 17 at 8:23 am

  60. Hi everybody.
    I am Jean-Yves. I bring you the sun of France.
    I have modified QT5 ext2read : https://sourceforge.net/projects/ext2read
    project to consolidate lvm metadata parsing , adding an ext2write method , and others small bugs.
    I wrote the contributer to be a maintainer porpose but he did not yet reply.
    When/if he will i’ll send him the patch then. But the ext2read(write) now will never respond to many needs since it is a user mode application and it is not accessible from the system file explorer. So we are in prison in its own window listing.
    So i looked at ext2fsd and was wondering why it does not support LVM since
    tell me if i am wrong and i am probably it is just a question of adding an lvm mapping layer.
    So i tried to compile/debug the source but i could not.
    I am running on windows 10 with visual studio 2017 but it does not compile at all.
    The specifications say i must have an older version : vs 2015 if i remember : why that?
    I tried to refactor but still tons of errors.
    I hate to install tons of logiciels and i wonder if someone made a patch in order to make the source compatible with vs 2017 or probably there is a simple procedure that i missed.
    I did not look carrefully enough probably.
    Any help would be appreciate.
    Thank You very much in advance for your help.

    Jyves Daniel

    27 Sep 17 at 7:18 pm

  61. Yesterday I install Ext2Fsd on Windows 10…..One big mess…the PC won’t shut down en after 10 min it’s was out…..
    In the past I use it a lot on XP and it was Super…..I think now there is a problem with Windows 10
    Hope that the will be a solution…..


    7 Jan 18 at 6:00 am

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