Article ID: 267015 - View products that this article applies to.
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When you attempt to copy an Outlook personal folders (.pst) file to another folder that contains a .pst file, the .pst file is not copied to the destination folder, and the .pst file in the destination folder is deleted.
When you attempt to copy the .pst file, a Confirm File Replace dialog box is displayed. If you click Yes in the Confirm File Replace dialog box, you receive the following error message:
When you click OK in the Error Copying File or Folder dialog box, the .pst file in the destination folder is deleted.
Cannot copy mailbox. The process cannot access the file because another process has locked a portion of the file.
This problem occurs in the following scenario:
To work around this problem, verify that the destination folder does not contain a .pst file with the same name. If it does, rename the file before you perform the copy operation.
For information about renaming files, refer to the "Renaming files or folders" topic in Windows Help.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.