At the moment, this has become simple.

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If I hit Alt + T, that throws the toggle for "Try New Outlook" and you then get a confirmation dialog asking you whether you want to switch or cancel.

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In New Outlook, if I hit Alt I can then just tab twice and I'm on the toggle to switch back to Outlook Classic.

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It should not be necessary to do this anymore for almost anyone.? Several months ago the change was rolled out to the general public that allows you to start either New Outlook or Outlook Classic from Windows Search.? How those are designated is showing some variability, but the only three designations I've seen are Outlook, Outlook (new), and Outlook (classic).? Which two of those three are on a given system varies.? On mine, the plain Outlook fires up New Outlook, and Outlook (classic) fires up Outlook Classic.? For many months, I had only Outlook (new) and Outlook (classic).? That changed a few months back for me.

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It is much easier to be critical than to be correct.

?????? ~ Benjamin Disraeli, 1804-1881

Chuck,

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Then I'd suggest contacting Microsoft Accessibility for help.? Outlook Classic should work just fine with any account that's accessed via IMAP or MS-Exchange.? You could try deleting, and then re-creating, the account in Outlook Classic as a DIY first step.? It's also possible that there is a corruption in the Outlook Classic profile, which is not common, but nor is it extremely rare.??

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It is much easier to be critical than to be correct.

?????? ~ Benjamin Disraeli, 1804-1881