Error Message: “Can not write to transaction file” when Printing or opening email attachments or emails in Outlook 2010

When
you try to open or save an e-mail attachment, you may receive the following
error message:

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

1. Click My Computer, and then
   double-click drive C.
2. On the File menu, click New, and then
   click Folder.
3. Name the
   folder temp0.
4. Click Start, click Run, type regedit, and then click OK.
5. Locate and
   then click the following registry key:
   HKEY_CURRENT_USERSoftwareMicrosoftOffice14.0OutlookSecurity
6. In the right
   pane, double-click OutlookSecureTempFolder.
7. In the Value Data field, type C:temp0 and
   then click OK.
8. Exit
   Registry Editor.
9. Restart the
   computer.