Unable to format SD card with guiformat

Discussion in 'Wii U - Hacking & Backup Loaders' started by ZeRoX98, Mar 19, 2017.

  1. ZeRoX98
    OP

    ZeRoX98 Member

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    Mar 19, 2017
    United States
    Hello,

    Whenever I attempt to format the SD card with guiformat, I get the error below:

    Error:
    Failed to open device
    GetLastError()=32
    The process cannot access the file because it is being used by another process.

    Screenshot: http://imgur.com/9Vl09CT

    SD card: SanDisk 128GB Ultra SDXC UHS-I (not MicroSD)

    I've already tried a few things but still get the same error:
    1. Format at 64KB
    2. Format at 32KB
    3. Start in Safemode and Format
    4. Tested in another computer with an integrated SD card reader
    5. Tested with a SD to USB adapter (it's a no name brand but should work as I've used it in the past).
    Some side notes:
    1. The card is readable and I can write to it.
    2. I tested using Windows to format and it was able to format without issues (in exFAT)
    Currently in process of using H2testw to check authenticity of the card. Will post results once complete.

    Update: H2testw completed and looks like the card is real.

    Any help is appreciated! Thanks in advance!

    Update:
    I found the solution to this. Hope this helps people with the same issues.

    1. Open guiformat. Leave it open.
    2. Open up Task Manager (either with CTRL+ALT+DEL or right clicking on Start Menu bar > Task Manager)
    2. Go to processes tab and look for explorer.exe (for Windows 10, it's simply called "Windows Explorer")
    3. End explorer.exe (or "Windows Explorer). You will lose your start menu and all currently opened Windows Explorer windows. Keep Task Manager open.
    4. Begin the format process with guiformat and you should be able to format without getting that error.
    5. In Task Manager, go to File > New Task
    6. Type in "explorer.exe", hit OK. It will bring back your start menu. That's it.

    Alternate and quite possibly an easier solution:
     
    Last edited by ZeRoX98, Dec 24, 2018
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  2. KiiWii

    KiiWii GBAtemp Guru

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    Nov 17, 2008
    United Kingdom
    Open disk management (Windows), check if it's showing there. If it is, format it through that.
     
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  3. ZeRoX98
    OP

    ZeRoX98 Member

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    Mar 19, 2017
    United States
    Yes, it does show up there and I have formatted using that but it can't format in FAT32, which is why I was attempting to use guiformat to do it for me.
     
  4. KiiWii

    KiiWii GBAtemp Guru

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    Nov 17, 2008
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    When I build recalbox for Pi3, I have similar issue and this always fixes it for me.

    Authenticity was confirmed or?
     
  5. ZeRoX98
    OP

    ZeRoX98 Member

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    Mar 19, 2017
    United States
    I've already formatted using Windows but it's in exFAT now, but FAT32 is needed.

    Just to see if it's fake or not and if it is fake, possible that it may be causing the issue even though it seems unrelated.
     
  6. RosaliinaDaHacker64

    RosaliinaDaHacker64 3DS hacker.

    Member
    5
    Oct 7, 2015
    Ireland
    Loot Lake
    I always get that error. What to do is to go to This PC > Right-Click on SD card drive L:\ > Format... , normally re-format as exFAT or NTFS so it kills any random processes in it, run that program again then format to FAT32.
     
    Last edited by RosaliinaDaHacker64, Mar 19, 2017
  7. ZeRoX98
    OP

    ZeRoX98 Member

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    Mar 19, 2017
    United States
    Hmm I think I already tried that but I'll keep that in mind for the future if I need to do it again. However, I was able to format into FAT32 using another program called "MiniTool".

    In case anyone has the same issue, try this program: http://www.minitool.com/

    Thanks all for the responses!
     
  8. godreborn

    godreborn GBAtemp Guru

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    Oct 10, 2009
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    use h2testw to see if it's fake. it will write over the entire card, then verify the data. that will tell u if there's a problem.
     
  9. ZeRoX98
    OP

    ZeRoX98 Member

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    Mar 19, 2017
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    I already ran h2testw. I updated my first post with my results. Looks like the card is real.
     
  10. godreborn

    godreborn GBAtemp Guru

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    Oct 10, 2009
    United States
    I just read the post u made about whether it was real or fake. sometimes u have to format the card in windows, then fat32gui. I've had this problem before, and that's what fixed it. it would say the device was being used by another program (error) when it wasn't. fat32gui would say that anyway. windows formatted it no problem.
     
  11. jbuck1975

    jbuck1975 GBAtemp Advanced Fan

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  12. ZeRoX98
    OP

    ZeRoX98 Member

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    Mar 19, 2017
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  13. bostonBC

    bostonBC GBAtemp Maniac

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    Aug 17, 2011
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    I have that problem all the time. Make sure ALL your Windows explorers windows are closed and try it again. That fixes it for me.
     
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  14. zeldaism

    zeldaism GBAtemp Advanced Fan

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    Drag the app to the desktop and close everything that's open. That fixed my error.
     
  15. MachWulf

    MachWulf Newbie

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    Jul 3, 2017
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    Bingo! Thanks for the share! I feel dumb, since I've had AND fixed this exact problem w/ my Wii already.. (life on repeat)
     
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  16. Nightwinter

    Nightwinter Advanced Member

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    Dec 25, 2015
    Venezuela
    Venezuela
    same problem as OP Author, but with PNY 4gb micro sd, formatted trough Disk Management and then tried again with guiformat and worked lik a charm. Thanks!
     
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  17. greenguren

    greenguren Newbie

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    May 14, 2018
    United States
    First format the card as normally as NTFS, then use GUIFormat to format it to fat32. worked for me.
     
  18. XaneTenshi

    XaneTenshi GBAtemp Fan

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    Nov 24, 2013
    Denmark
    I need help formatting my Micro SDXC to fat32. I've tried uding Guiformat to do so but it gave me the same error as OP. When i then reformatted it with Windows and tried with GUIformat again, this time, when it was 53% thorugh formatting, I got the error "Failed to set volume label". I don't know what to do at this point:/

    EDIT: It also tells me that the drive contains an unfamiliar filesystem. When i reformatted with Windows format tool, I chose exfat, same system as the card already had.
     
    Last edited by XaneTenshi, Jul 9, 2018
  19. ZeRoX98
    OP

    ZeRoX98 Member

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    Mar 19, 2017
    United States
    I've actually found out sometime later after my original post on a solution for that error.

    1. Open up Task Manager.
    2. Go to processes tab and look for explorer.exe
    3. End explorer.exe. You will lose your start menu. Keep Task Manager open.
    4. Run guiformat and you should be able to format without getting that error.
    5. In Task Manager, go to File > New Task
    6. Type in "explorer.exe", hit OK. It will bring back your start menu. That's it.

    Let me know if that works for you.

    Sent from my SM-G930T using Tapatalk
     
    Last edited by ZeRoX98, Jul 9, 2018
  20. XaneTenshi

    XaneTenshi GBAtemp Fan

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    Nov 24, 2013
    Denmark
    Thanks for the reply. I need a bit more to go on. When I shut down explorer.exe, I just got a completely black screen, can't even see the dekstop where guiformat is located:/

    EDIT: I'm on Windows 10 and had to go to the "details" tab to find explorer.exe, couldnt find it under "processes". Don't know if that's simply how it works on Windows 10 or it is because I am unfamiliar with Windows 10 in general. But I don't suppose that would make a difference would it?
     
    Last edited by XaneTenshi, Jul 9, 2018
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