Issue

When you try to start Adobe Photoshop CS4, Adobe Photoshop CS5, or Photoshop Elements 6 on Windows, the application closes when the splash screen displays "Building TWAIN menu items" and Windows may return one of these error messages:

  • "Adobe Photoshop CS4 has stopped working."
  • "Adobe Photoshop CS5 has encountered a problem and needs to close."
  • "Adobe Photoshop Elements 6.0 (Editor) has stopped working."
  • "Adobe Photoshop Elements 6.0 (Editor) has encountered a problem and needs to close."

Reason

The 32-bit editions of Photoshop CS4 and CS5, as well as Photoshop Elements 6.0 (Editor), include support for a technology called TWAIN, which lets you control certain image-acquisition devices--including many scanners, the scanner portion of many all-in-one printers, and some webcams--directly from within the software.

During the startup process, Photoshop and Photoshop Elements load the TWAIN plug-in. This plug-in immediately begins communicating with the driver for each scanner or other TWAIN-compatible device that is installed on your computer.

If the TWAIN plug-in cannot communicate with a device driver, then Photoshop or Photoshop Elements crashes.

Note: When you install Photoshop CS4 or CS5 on a 64-bit edition of Windows, both the 32-bit and 64-bit editions of Photoshop are installed by default.

Solution

Do Solution 1 first, then try Solution 2. Proceed to Solution 3 only if you wish to operate your device directly from within Photoshop or Photoshop Elements Editor.

Solution 1: Disable the TWAIN plug-in.

Photoshop and Photoshop Elements Editor do not load plug-ins whose file name begins with a tilde (~). Rename the TWAIN plug-in to prevent Photoshop and Photoshop Elements Editor from loading it.

To disable the TWAIN plug-in:

  1. Do one of the following:
    • If you are using a 32-bit edition of Windows:

      Photoshop CS4: Navigate to C:\Program Files\Adobe\Adobe Photoshop CS4\Plug-Ins\Import-Export\

      Photoshop CS5: Navigate to C:\Program Files\Adobe\Adobe Photoshop CS5\Plug-Ins\Import-Export\

      Photoshop Elements 6.0 Editor: Navigate to C:\Program Files\Adobe\Photoshop Elements 6.0\Plug-Ins\Import-Export\
    • If you are using a 64-bit edition of Windows:

      Photoshop CS4: Navigate to C:\Program Files (x86)\Adobe\Adobe Photoshop CS4\Plug-Ins\Import-Export\ 

      Photoshop CS5: Navigate to C:\Program Files (x86)\Adobe\Adobe Photoshop CS5\Plug-Ins\Import-Export\

      Photoshop Elements 6.0 Editor: Navigate to C:\Program Files (x86)\Adobe\Photoshop Elements 6.0\Plug-Ins\Import-Export\

    Note: If you do not know which edition of Windows you are using, see Determine whether your computer is running a 32-bit or a 64-bit edition of Windows (kb407673).

  2. Rename Twain_32.8BA to ~Twain_32.8BA. (You may not see the filename extension .8BA.)

When the TWAIN plug-in is disabled, you cannot operate your device by choosing File > Import > [Device name] in Photoshop or Photoshop Elements.

If you do not wish to operate your device directly from within Photoshop or Photoshop Elements, then you can use other software -- such as the software that came with the device, the Windows Scanner And Camera Wizard, or Windows Photo Gallery -- to operate the device and save image files from the device. (For instructions, see the documentation for the other software.) Then you can open those files in Photoshop or Photoshop Elements.

Solution 2: Disable older scanner files in Windows.

If Solution 1 does not solve the problem, open the C:/WINDOWS/Twain_32 folder and move all files in that folder except the wiatwain.ds file to another location. Older scanning files in this folder can cause problems with more recent drivers and applications. 

If you would like to operate your device directly from within Photoshop or Photoshop Elements, then proceed to Solution 3.

Solution 3: Troubleshoot installed drivers and re-enable the TWAIN plug-in.

If you use a scanner, all-in-one printer, or another TWAIN-compatible device on your system, then the device's driver may be out-of-date. Download the latest version of the driver for your device from the manufacturer's website. Follow the manufacturer's instructions to install the driver. (If you have more than one TWAIN-compatible device, then download and install the latest driver for each device.)

After you have installed the latest driver for each device, re-enable the TWAIN plug-in and restart Photoshop or Photoshop Elements.

To re-enable the TWAIN plug-in:

  1. Do one of the following:
    • If you are using a 32-bit edition of Windows:

      Photoshop CS4: Navigate to C:\Program Files\Adobe\Adobe Photoshop CS4\Plug-Ins\Import-Export\

      Photoshop CS5: Navigate to C:\Program Files\Adobe\Adobe Photoshop CS5\Plug-Ins\Import-Export\

      Photoshop Elements 6.0 Editor: Navigate to C:\Program Files\Adobe\Photoshop Elements 6.0\Plug-Ins\Import-Export\
    • If you are using a 64-bit edition of Windows:

      Photoshop CS4: Navigate to C:\Program Files (x86)\Adobe\Adobe Photoshop CS4\Plug-Ins\Import-Export\ 

      Photoshop CS5: Navigate to C:\Program Files (x86)\Adobe\Adobe Photoshop CS5\Plug-Ins\Import-Export\

      Photoshop Elements 6.0 Editor: Navigate to C:\Program Files (x86)\Adobe\Photoshop Elements 6.0\Plug-Ins\Import-Export\

    Note: If you do not know which edition of Windows you are using, see Determine whether your computer is running a 32-bit or a 64-bit edition of Windows (kb407673).

  2. Rename ~Twain_32.8BA to Twain_32.8BA. (You may not see the file name extension .8BA.)

If Photoshop or Photoshop Elements successfully starts with the TWAIN plug-in enabled, then you can operate your device by choosing File > Import > [Device name].

If Photoshop or Photoshop Elements fails to start, then the driver for one or more TWAIN-compatible devices that you no longer have or no longer use may be causing the problem. (A driver will remain on the computer even after you disconnect a device.) Identify each device that you do not use, and then follow the manufacturer's instructions to completely remove each device's driver.

After you remove the driver for each device that you do not use, restart Photoshop.

If Photoshop or Photoshop Elements still fails to start, then the driver for one or more of the devices that you currently use is incompatible with the TWAIN plug-in. In that case, disable the TWAIN plug-in (see Solution 1: Disable the TWAIN plug-in) and leave it disabled. (You may also wish to periodically check the device manufacturer's website for driver updates. If an updated driver becomes available, then repeat this solution.)

Additional Information

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