Hi Gary, welcome and thank you for your question. My name is Jess and I am glad to assist you today.
I am very sorry to inform you that you cannot have two (2) versions of Outlook in one computer at the same time. That is, if you installed MS Office 2013 with Outlook over your MS Office 2010, the Outlook 2010 will be removed during the installation process so you will end up with Outlook 2013.
During installation, Microsoft showed a notice in the installation screen like this that many users can easily ignore:
Outlook: Some things to consider
Before you install Outlook, you must remove any earlier version of Outlook, because two versions of Outlook can’t be on the same computer. If you want to keep an earlier version of Outlook, you must choose on the Installation Options tab to not install Microsoft Outlook 2013.
If you choose not to install Outlook 2013, the version of Outlook you kept won’t use Microsoft Word as its email editor. You’ll use the Outlook email editor instead and not be able to use the features in the Word email editor.
Therefore, if you want to keep your Outlook 2010, during installation, you must UNCHECK or de-select MS Outlook so that only the other Office 2013 software will be installed AND NOT Outlook 2013. This is a CUSTOM installation approach that you can perform when you install any MS Office software.
Now that your Outlook 2010 is gone, there are two (2) options that you can do from here:
First, you can keep your Outlook 2013 and configure your emails there since by default all your emails and data from Outlook 2010 are now accessible in your new Outlook 2013.
Second, you can redo the entire process. Uninstall Office 2013, then reinstall it BUT this time, please UNCHECK or de-select Outlook to exclude it from being installed. This is the only way that you can keep your Outlook 2010 with other Office 2013 applications.
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