[SOLVED] Outlook 2010 – Unable to open attachment – "Cannot create file" error

Problem:

When attempting to open an attachment in an Outlook message you receive the following error:

Cannot create file: image.tif. Right-click the folder you want to create the file in, and then click Properties on the shortcut menu to check your permissions for the folder.

MSOutlook-TempFull1

The attachment fails to open.

Solution:

This issue is usually caused when more than 99 attachments with the same name have been opened.

When attachments are opened they are saved into a temporary folder (e.g. ‘image.tif’). If the file name is already in use, it will save it as ‘image(1).tif’, As more files are opened it will continue to create new files until it gets to ‘image(99).tif’ after this it will be unable to create any new files and will fail to open any attachments with the file name of ‘image.tif’.

To resolve the issue you will need to delete the duplicate files in the temporary folder.

STEP 1: Locate the temporary folder

The path to this folder changes depending on which version of Windows and Office you have installed. You will need to check the registry to get the folder path.

  1. Open the registry editor (Start -> regedit)
  2. MSOutlook-TempFolder1
  3. Navigate to the path below for your version of Outlook
  4. MSOutlook-TempFolder2
Outlook 97HKEY_CURRENT_USER\Software\Microsoft\Office\8.0\Outlook\Security
Outlook 98HKEY_CURRENT_USER\Software\Microsoft\Office\8.5\Outlook\Security
Outlook 2000HKEY_CURRENT_USER\Software\Microsoft\Office\9.0\Outlook\Security
Outlook 2002/XPHKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Security
Outlook 2003HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Security
Outlook 2007HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\Security
Outlook 2010HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Security
  1. Open the ‘OutlookSecureTempFolder’ registry key and take note of the path
  2. Navigate to the folder path.

STEP 2: Delete the duplicate files

  1. Delete the duplicate files (or all files)
  2. MSOutlook-TempFull2

OPTIONAL STEP: Script to delete the folder

The following VBS Script can be used to delete the contents of the Outlook temporary attachment folder (Secure Temp Folder).

It will only work for Outlook 2010 but can be modified for other versions by changing the ‘RegValue’ value.

To use save the contents into a text file and save with the ‘vbs’ extension. E.g. ClearOutlookTemp.vbs

VBS Script:

Dim RegValue
Dim WshShell
Set net = CreateObject("WScript.Network")
Set WshShell = WScript.Createobject("WScript.shell")

RegValue = WshShell.RegRead("HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Security\OutlookSecureTempFolder")

WshShell.run "cmd /C del " &  chr(34) & RegValue & "*.*" & chr(34) & " /Q /F", 0, True

wscript.echo "Outlook TEMP Folder has been cleared"

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