hi @Linto
Just change value to by Outlook Exe path to Default Value into Registry.
Computer\HKEY_CLASSES_ROOT\WOW6432Node\CLSID{0006F03A-0000-0000-C000-000000000046}\LocalServer32
Also check if you have 2 version of Outlook installed in your system.
please go below path and delete version which you do not required.
Computer\HKEY_CLASSES_ROOT\TypeLib{0006F062-0000-0000-C000-000000000046}\1.2\0
delete Win32 or Win64 as per your version value set for first path.