By finding this I’m gussing you and I are having the same problem.

The problem being that your trying to open an email attachment in outlook and it’s throwing up the error “cannot create file”.

Here is a quick and easy way to sort this:

#1. Click Start > Run and type regedit.

#2. Click Edit > Find and type OutlookSecureTempFolder.

#3. When regedit has found the entry, it will tell you where your Outlook temporary files are stored. It will look similar to: C:\Documents and Settings\username\Local Settings\Temporary Internet Files\OLKrandomnumber

#4. Open My Computer go to the location you just found above.

#5. Delete (or move) all of the files in this folder.

#6. Restart Microsoft Outlook and try to open the attachment again.