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Richard, Software Specialist
Category: Microsoft Office
Satisfied Customers: 37653
Experience:  Over 15 year experience resolving Microsoft Office Issues
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I keep getting this error message when trying to reinstall

Customer Question

I keep getting this error message when trying to reinstall Outlook 2003 it keeps asking for OPA11.BAK.

Can you help??

Submitted: 5 years ago.
Category: Microsoft Office
Expert:  xiaqin replied 5 years ago.

Qin Xia :

Hello, Welcome to JustAnswer! My name isXXXXX is my pleasure to work with you to solve your problems.

Qin Xia :

can you search the computer for this file?

Qin Xia :


Qin Xia :

Let me know if you find it in the computer

JACUSTOMER-iew262ty- :

have searched computer for this file and it is not there

JACUSTOMER-iew262ty- :

i have also tried to access microsoft to see if there is a patch or fix that I could use but the only solution had been removed.

Expert:  Richard replied 5 years ago.
Hi there, and welcome to JustAnswer You will need to follow the below instructions to correctly uninstall Outlook so it can be reinstalled. I am sorry but the list is a little extensive. If you get stuck on any step, please let me know

1. Quit all running programs.

2. Download and install the Windows Installer Cleanup Utility.

3. After you have installed the Windows Installer CleanUp Utility, click Start>All Programs>Windows Install Clean Up.

4. Highlight Microsoft Office 2003 entry in the list and then click Remove. Click OK and wait for the process to end. If any other stand alone Office applications (such as Visio and Project) appear on the list, please also remove them. Then, click Exit to close the Windows Installer Cleanup utility.

5. Click Start>Run, type "regedit" (without the quotation marks) in the Open box and press Enter.

6. Locate the registry keys below and click Delete from the Edit menu. Click OK on the following warning dialog box. Note: Please go to File>Export and backup all the registry first. HKEY_CURRENT_USER\Software\Microsoft\Office HKEY_LOCAL_MACHINE\Software\Microsoft\Office Quit Registry Editor.

7. Delete or rename the following folders or files if they exist: C:\Program Files\Microsoft Office
C:\Program Files\Common Files\Microsoft Shared\OFFICE11
C:\Documents and Settings\\Application Data\Microsoft\Excel
C:\Documents and Settings\\Application Data\Microsoft\Office
C:\Documents and Settings\\Application Data\Microsoft\Outlook
C:\Documents and Settings\\Application Data\Microsoft\Publisher
C:\Documents and Settings\\Application Data\Microsoft\Templates\ C:\Documents and Settings\\Application Data\Microsoft\Word
C:\Documents and Settings\All Users\Application Data\Microsoft\Office C:\Program Files\OfficeUpdate11

8. Click Start>Run, type "%Temp%" (without the quotation marks) in the Open box and press Enter. Delete all the files and folders within it. If there are some files which cannot be deleted, just leave them alone and this will not affect the result.

9. Empty the Recycle Bin.

10. To remove MAPI, search for and rename the following folders/files if they exist: C:\Windows\system32\mapi32.dll C:\Windows\system32\mapisvc.inf
C:\Program Files\Common Files\System\Msmapi
C:\Program Files\Common Files\System\Mapi

11. Restart your computer and install Office 2003 again.
Customer: replied 5 years ago.



I am still getting the same error message can you advise where I can get this file from??

Expert:  Richard replied 5 years ago.
Can I please check that you were able to downlaod and install the following program

Customer: replied 5 years ago.

my machine completely crashed and I have had to reinstall everything from scratch. I am still getting the same error message even after formatting the hard drive and doing a complete new re install.


Can you still help?




Expert:  Richard replied 5 years ago.
ok, restart the computer and keep pressing F8 repeatedly until a menu appears
Choose from the menu Safe Mode

Once windows starts in safe mode, attempt to install outlook and when finished restart the computer normally.

If you still get the error please let me know.