1. IamSovereign's Avatar
    First and Foremost... This is FOR EDUCATIONAL PURPOSES ONLY! USE AT YOUR OWN RISK! I TAKE NO RESPONSIBILITY FOR ANY ISSUES THAT ARISE FROM THE USE OF THIS PROCEDURE. With that said, it works flawlessly on my Surface Pro.

    Second, I want to thank MetalDwarf for coming up with a solution to enable this on 64 bit versions of Windows 7 which can be found at hardforum.com. Fortunately, it also works on windows 8. I also want to thank the other websites and original authors of software and instructions that are mentioned elsewhere in this guide. It took me a while to figure out how to do this so I consolidated all the information into this one document to simplify the research.

    I have also consolidated all the files needed in this zip (Mount_SD_Card_as_HardDisk_SurfacePro.rar) at https://skydrive.live.com/redir?resi...NCTYfgdJbs7HJw or each can be downloaded separately. (see below list)

    Download the 64bit Hitachi Microdrive driver cfadisk-x64-1.zip.

    Download the Driver Signature Enforcement Override dseo13b.exe from NGHQ.com (It says it is only for up to Windows 7 but it does work on Windows 8)

    Download My_WCP_Watermark_Editor.exe

    Disable secure boot on the Surface Pro

    Perform this procedure as originally posted at surfacetablethelp.com

    "* First boot Surface to the UEFI Firmware Settings in Windows 8 Advanced Options UI.
    Open charms bar from start screen, tap Setting > Change PC settings > General, and then Restart now under Advanced startup. Tap on Troubleshoot in the Choose an option screen > Advanced options > UEFI Firmware Settings, and Restart button.
    You can also hold down the Volume Up key on the tablet during the initial stages at boot.
    * While Surface are booted directly to an all black screen with two options: Security Device Support, Secure Boot Control.
    Tap the space labeled [Enabled], next to Secure Boot Control, and select [Disabled] from pop up prompting. Then tap Exit Setup"

    Enable Loading of Unsigned Drivers

    run cmd.exe as the administrator
    Now type the following
    "bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS" (without the "")
    press Enter:
    "bcdedit -set TESTSIGNING ON" (without the "")
    press Enter:
    Note: this will create a permanent watermark on the desktop showing the Surface Pro in Test Mode. This watermark can easily be removed with My_WCP_Watermark_Editor.exe

    Editing and Installing the Unsigned Driver

    The below part is copied directly from MetalDwarf's post and all credit goes to him, however, I have added the specifics to accomplish this on the Surface Pro.

    Part A
    First you need to find the name of your USB or SDHC device
    run -> regedit -> navigate to:
    HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\USBSTOR
    Right click on "Disk&Ven_Generic-&Prod_USB3.0_CRW__-SD&Rev_1.00" and click "copy key name"

    Part B
    unzip the files from " cfadisk-x64-1.zip " and open cfadisk.inf in notepad.
    scroll down to the section [cfadisk_device] you will see the line
    %Microdrive_devdesc% = cfadisk_install,IDE\DiskTS64GCF400__________________________ ____20101008

    delete everything after the comma so you are left with
    %Microdrive_devdesc% = cfadisk_install,
    paste your device string you copied in Part A starting from USBSTOR into the line just after the comma, no spaces.
    you should have something that looks like this
    %Microdrive_devdesc% = cfadisk_install,USBSTOR\Disk&Ven_Generic-&Prod_USB3.0_CRW__-SD&Rev_1.0
    repeat this process for the section immediately below called
    [cfadisk_device.NTamd64]

    If you are so inclined you can name your device at the bottom of the file by editing the text in the quotes in the last line after it says
    Microdrive_devdesc = "your device name here"
    save the file, you now have a functioning driver.

    Part C
    You now need to install the driver
    Open Device Manager, open Disk drives, right click on "SDXC Card" and chose to update driver.
    Click "Browse my computer for drivers software" then click "Let me pic from a list of device drivers on my computer." Now click "Have Disk" and open the .ini file you just edited.
    Windows will ***** and complain that the file is not signed, and not a compatible driver. Proceed anyways.
    Once installed you should see the USB device show up as a "Disk Drive"

    Sign the Newly Installed Driver and Remove Watermark

    Run dseo13b.exe as an administrator.
    Click Next, then Yes.
    Check "Sign a System File" and click Next.
    Enter the path to the newly installed driver and click OK. For me it was C:\Windows\System32\Drivers\cfadisk.sys
    Exit the program.
    Run My_WCP_Watermark_Editor.exe as an administrator.
    Check Remove Watermark at the top and click Apply Settings.
    Reboot the Surface Pro and you should see the SD Card listed beside the C Drive as a Hard Disk. The watermark should also be removed.
    Now you can move SkyDrive to the SD Card, install programs, create multiple partitions or whatever else you desire. Enjoy! :)
    yloops likes this.
    04-25-2013 03:39 PM
  2. yloops's Avatar
    Hey Bro, I've tried but regardless of what I do it doesn't install the driver. The comp is in test mode, and the TESTSIGNING ON command worked ( it said successful) however, I cant install the non signed driver, secure boot is also on.
    04-26-2013 02:43 AM
  3. yloops's Avatar
    okay so got i working by disabling the need for a signature when installing drivers on advanced start up..... really good job mate!
    04-26-2013 05:56 AM
  4. IamSovereign's Avatar
    You're welcome yloops!
    04-26-2013 10:37 AM
  5. theefman's Avatar
    Nice work on the tutorial but IMO much simpler way to do it is to create a vhd on your SD card, then install this VHD Attach 3.70 Medo's Home Page and set to automount. Appears in explorer and works like a normal drive.
    04-26-2013 11:37 AM
  6. IamSovereign's Avatar
    Nice work on the tutorial but IMO much simpler way to do it is to create a vhd on your SD card, then install this VHD Attach 3.70 Medo's Home Page and set to automount. Appears in explorer and works like a normal drive.
    theefman, thanks for the alternative method. It does seem way simpler and less risky. I might give it a try to see how well it functions.
    04-26-2013 12:29 PM
  7. Steve Ridges's Avatar
    I've been doing the VHD thing on my surface. I just set up a task with the scheduler that mounts it at login.
    04-26-2013 08:37 PM
  8. yloops's Avatar
    Is it possible tom do something similar for a Network attached storage drive since xbox music wont accept it in the library?
    04-27-2013 01:57 AM
  9. theefman's Avatar
    I've been doing the VHD thing on my surface. I just set up a task with the scheduler that mounts it at login.
    Can you share how to setup that task? Wouldn't mind having one less program running at startup.
    04-27-2013 05:29 AM
  10. Steve Ridges's Avatar
    05-02-2013 05:04 PM
  11. stlao's Avatar
    This tutorial is great, but i've found a problem with my surface pro.

    I did follow this guide line by line, but my surface pro start self repair after the reboot after this tweak, any idea about this?
    05-14-2013 02:39 AM
  12. Steve Ridges's Avatar
    This tutorial is great, but i've found a problem with my surface pro.

    I did follow this guide line by line, but my surface pro start self repair after the reboot after this tweak, any idea about this?
    Not sure about that. I didn't have any problems.
    05-14-2013 09:42 AM

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