This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(272, 26%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EC%3C/text%3E%3C/svg%3E)
I'm trying to use my pst file with my yahoo email on Outlook 2024. The YouTube tutorials refer to "Settings" in the upper right which was to be replaced by a gear. I find neither trying to set up my data file. Please help. Thanks.
Using Classic Outlook on Windows for personal email, calendar, and contact management
Locked Question. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(160, 57.00000000000001%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENV%3C/text%3E%3C/svg%3E)
My gear icon is on the bottom right and when I click on it, it says class not registered. What does that mean? I just want the old format back!
Please start your own thread, using the Ask a question option. Doing so will ensure that your question gets more attention. Be sure to include your version of Outlook and operating system. You may also want to include a screen shot.
The current thread is from September 2025 and it will be closed.
For information on PST files in Outlook, see https://support.microsoft.com/en-us/outlook/import-email-contacts-and-calendar-from-an-outlook-pst-file .
P.S.
The Settings gear icon is in the new Outlook for Windows, on the right hand side of the title bar. See the screen shot below.
If you have Office Home & Business 2024, which includes the classic Outlook, you will find the application options at File > Options. Depending on the size of the Outlook app window, you may have to click File > More > Options instead.