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Go to Outlook, Options, Search and make sure the options are set to search through your PST file (or all mailboxes as the case may be). The default out of the box setting is just for Inbox.
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Go to Outlook, Options, Search and make sure the options are set to search through your PST file (or all mailboxes as the case may be). The default out of the box setting is just for Inbox.

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Those options are set and it makes no difference.
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Those options are set and it makes no difference.

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The next step is to look in the Windows index options, make sure that locations include Users and Outlook and them rebuild the index.
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The next step is to look in the Windows index options, make sure that locations include Users and Outlook and them rebuild the index.

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Those were included already....
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See if Windows Search is working completely and well. &nbsp;If that is the case, then try uninstalling Office 2013, restart and then reinstalling Office 2013.
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See if Windows Search is working completely and well.  If that is the case, then try uninstalling Office 2013, restart and then reinstalling Office 2013.

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That did it! The searches had been including a high-capacity backup drive.
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That did it! The searches had been including a high-capacity backup drive.

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I have come to realize that my Outlook 2013 is not searching messages / that is it's not finding any that are even obviously there!<br />
I've run the scanpst repair process and there's been no change.<br />
The .pst file is 1.7GB in size - so that should be OK, eh?
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I have come to realize that my Outlook 2013 is not searching messages / that is it's not finding any that are even obviously there!
I've run the scanpst repair process and there's been no change.
The .pst file is 1.7GB in size - so that should be OK, eh?

Outlook 2013 won't search

Microsoft Office is an integrated suite of applications that includes Outlook, Word, Excel, Access, PowerPoint, Visio and InfoPath, along with a number of tools to assist in making the individual components work together. Coding within and between the projects is done in Visual Basic for Applications, known as VBA.

Microsoft Office

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.