Recover Contacts, Tasks & Appointments After Upgrading Microsoft Apps - Classic Outlook

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Recover Contacts, Tasks & Appointments After Upgrading Microsoft Apps - Classic Outlook

Roger Black 20

I just updated my Microsoft apps and discovered that I have lost all of my contacts, tasks and appointments.

I used the Classic Version and had everything stored locally.

I now can't locate them in the Classic Outlook version after I upgraded.

How do I recover them?

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Answer 1

Diane Poremsky 8,280 Independent Advisor

What type of email account do you have configured in Outlook? POP, IMAP, Outlook.com, or Microsoft Exchange?

Did you just upgrade the software or also make a new profile?

If you were using an IMAP account and they were in folders named “(This computer only)", they were lost if you removed the account. If you made a new profile and did not delete the old one, you should still have the data file in %localappdata%\microsoft\outlook and can recover them but may need a 3rd party utility.

Roger Black 20 Reputation points

2025-07-30T22:24:39.6766667+00:00

It is configured IMAP.

I just upgraded the software and did not create a new profile (at least that I am aware of).They would have been in whatever default folder Outlook uses.
Kevin Dorrell 0 Reputation points

2025-09-07T14:58:07.0833333+00:00

I have the same problem. IMAP account, updated from Microsoft Store 365 version to click-and-collect version, and lost all my tasks. I run my life on the tasks.
Harry B 0 Reputation points

2025-09-07T15:56:51.3666667+00:00

I have the same type of problem. After an update and restart I lost all listed contacts and cannot receive emails. Attempting to reestablish the email results in adding @currently.com to my original address. I also purchased a new Microsoft 365, which seems to have added a new layer of confusion.

Recommendations included genrating a "Secure key". This was problematic since the original email does not seem to be added to the new account in Microsoft 365. Help!