Introduction

How to clean up the registry after installation of Office or Outlook.

This registry clean up could fix problems such as: Zivver messages do not load on receipt, an error message appears when sending messages, Outlook crashes, or the plugin is not visible in Outlook after installation.

The above generic problems may be caused by problems with the installation of the plugin, Office or of Outlook. If Outlook has been updated from for example version 2013 to 2016, the registry may still contain old references. These old references can lead to problems in Outlook.

Do these steps to remove these remains and clean up the installation. It is also possible to remove and reinstall Outlook. However, the Outlook repair function does not solve this problem.

Office registry clean-up

2.6 and 2.7 are okay for Office 2016 as well, if there is a reference to Office16 under 2.7.

Use the Windows Registry Editor to clean up the remains of old installations.

1. On your keyboard, simultaneously press the Windows logo and R keys.
   A Run screen opens.
2. Type regedit in the search box.
3. Click OK.
   Windows Registry Editor is started.
4. Navigate to the following location:
   HKEY_CLASSES_ROOT\TypeLib\{2DF8D04C-5BFA-101B-BDE5-00AA0044DE52}
   Or, if you are using a 64-bit system, to HKEY_CLASSES_ROOT\WOW6432Node\TypeLib\{2DF8D04C-5BFA-101B-BDE5-00AA0044DE52}
5. Check if the value of the underlying folders match the version of Office that is currently being used. Consult the table above.

6. Delete the folders to versions of Outlook that are not installed. Consult the table above.
   

   Do not delete the entry for the version of Office that you have installed.

The remains of the old installation of Office have been successfully removed. Continue to the next section.

Outlook registry clean-up

Use the Windows Registry Editor to clean up the remains of old installations.

1. On your keyboard, simultaneously press the Windows logo and R keys.
   A Run screen opens.
2. Type regedit in the search box.
3. Click OK.
   Windows Registry Editor is started.
4. Navigate to the following location:
   HKEY_CLASSES_ROOT\Interface\{00063001-0000-0000-C000-000000000046}\TypeLib
   Or, if you are using a 64-bit system, to HKEY_CLASSES_ROOT\WOW6432Node\Interface\{00063001-0000-0000-C000-000000000046}\TypeLib
5. Search for the Version entry here (type REG_SZ).
6. Check if the value matches the version of Outlook that is currently being used. Consult the table above.
7. Navigate to the following location in the register:
   HKEY_CLASSES_ROOT\TypeLib\ {00062FFF-0000-0000-C000-000000000046}

8. Delete the paths to versions of Outlook that are not installed. Consult the table above.
   

   Do not delete the entry for the version of Outlook that you have installed.

The remains of the old installation of Outlook have been successfully removed. Restart Outlook and verify if this solution worked.