How can I mount a data file (pst) in new outlook. In the classic version this is doable through the File menu which is not available in new outlook.

The New Outlook will not even open shared mailboxes, clients have had to switch back to Classic to get access to shared mailboxes. MS have completely and utterly lost the plot on this new Outlook, it is a total disaster and caused so many issues for end users who unwittingly think newer is better. Switching between them doesn't even remember IMAP account details.

Hi Team,

I just completed my upgrade to the latest versions of Windows (after a couple of challenges)...but I can report that Microsoft has resolved the .pst issue.

Within Outlook and under the primary folder pane, you'll see your primary email account. Next to your email account name there are now the 'ellipses' (three dots..).

When you select the ellipses, you will now see the option to also "Add file". This allows you to browse and add your .pst file so it appears under your Folder pane like it use to.

MC, OK, good to know. A couple of questions - when you say "latest versions of Windows", what exactly is the release number? You also mention a couple of challenges - any hints or suggestions about those? And lastly, because this has been a recurring and (for me) frustrating issue, you are talking about Outlook Desktop, correct?

Thanks.

Sure, apologies - I was on W11 23H2 and had problems upgrading to W11 24H2. The problem below is the one I'm describing.

I downloaded the free tool numerous people recommended and it showed that my reserved space was @ 93% full. Whereas using the diskmgmnt.msc, it showed 100% free....go figure. I followed the Cmd instructions on how to clear the fonts from the reserved fonts dir and it freed-up about 25%. I rebooted and tried again, it took about an hour for the full process to run and restart. (HP Z Book with i7 processor). However, my Surface Pro and MSI Cubi 5 devices were also running W11 23H2 upgraded without issues.

Yes, I'm talking about the standard windows desktop and the latest M365 Outlook.

Following the upgrade to 24H2, it forced me to start the new Outlook so I checked the .pst issue and found out it had been resolved per my update.

Cheers

MC

Exactly. When you change computers or need data exports a pst is essential. Why call it outlook if it doesn't work by mounting your existing pst. the different file formats of Windows mail (New Outlook) is why i stopped using it 30 years ago.