Outlook crashes when I expand calendars

Question

Outlook crashes when I expand calendars

Kelly Monteleone 55

Hi,

Last week (around Feb 12, 2025), I went to expand Outlook (new) calendars and noticed Outlook closed. This slowly became more and more of an issue as I was no longer able to expand the list of ofter calendars to turn my coworker's calendars on/off.

Our tech support, "resetting the application, uninstalling and reinstalling, we ended up removing all accounts except" my primary work email (Office365). That makes Outlook work, however, I need at least my work Google account to be active in Outlook too.

I tried adding my work Gmail into Outlook today and the issue with crashing when I expanded calendars returned.

Normally, I have 2 Office 365 & 2 Gmail accounts active in Outlook. This is causing serious productivity issues.

What is going wrong - is this an issue with an update last week?

Thank you in advance (esp if you are confirming you have this issue too).

Joe 20 Reputation points

2025-02-27T14:14:27.65+00:00

Same issue here. Also using an imported google calendar in new outlook.
Rayan de Zeeuw 15 Reputation points

2025-03-05T10:15:31.8033333+00:00

Same here, I did find that the online version works fine. Also the Calendar in MS Teams expands just fine. It is the new outlook calendar desktop app version that crashes without an error when expanding the calendars.
Paul Clarke 0 Reputation points

2025-03-07T17:41:27.5933333+00:00

Same here
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This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
John Benstead 5 Reputation points

2025-03-16T00:49:45.7066667+00:00

Same issue here, started for me on the 15/03/2025
Sleight, Roy 0 Reputation points

2025-03-18T21:15:59.8133333+00:00

Same issue here.
michael griffith 0 Reputation points

2025-03-24T09:36:05.6633333+00:00

I have the same problem 24/03/25...its ok on android tablet and phone but it crashes outlook(new) when trying to access calender on windows 10 PC...

2 answers

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Joe 20 Reputation points

2025-02-27T14:14:27.65+00:00

Same issue here. Also using an imported google calendar in new outlook.
Rayan de Zeeuw 15 Reputation points

2025-03-05T10:15:31.8033333+00:00

Same here, I did find that the online version works fine. Also the Calendar in MS Teams expands just fine. It is the new outlook calendar desktop app version that crashes without an error when expanding the calendars.
Paul Clarke 0 Reputation points

2025-03-07T17:41:27.5933333+00:00

Same here
Deleted

This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
John Benstead 5 Reputation points

2025-03-16T00:49:45.7066667+00:00

Same issue here, started for me on the 15/03/2025
Sleight, Roy 0 Reputation points

2025-03-18T21:15:59.8133333+00:00

Same issue here.
michael griffith 0 Reputation points

2025-03-24T09:36:05.6633333+00:00

I have the same problem 24/03/25...its ok on android tablet and phone but it crashes outlook(new) when trying to access calender on windows 10 PC...

Answer 1

SokiGuo-MSFT 31,536 Microsoft External Staff

Hi @Kelly Monteleone

Welcome to our forum!

Based on my research, there are no recent known bugs that have caused this issue.

Fixes or workarounds for recent issues in new Outlook for Windows - Microsoft Support

Are there any error prompts when the calendar crashes?

What account type did you add to your Gmail account (POP/IMAP/Exchange)?

Try deleting the problematic account, then switching back to the classic version, and then switching back to New Outlook to add the account again.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Kelly Monteleone 55 Reputation points

2025-02-21T20:43:10.2766667+00:00

No error prompt -Outlook just closes.

Gmail - I just used the default when I imported it - neither IMAP or POP are selected in the Gmail settings.

I had already removed all the extra accounts. I switched to the classic version (again) and back then added in my other Office365 account --> it did it again.
SokiGuo-MSFT 31,536 Reputation points Microsoft External Staff

2025-02-24T01:55:37.98+00:00

Hi @Kelly Monteleone

Thanks for your reply!

Will your Gmail account log in to the web version normally? Or can you test on another device that this account can be added normally?
SokiGuo-MSFT 31,536 Reputation points Microsoft External Staff

2025-03-03T07:57:22.9866667+00:00

Hi @Kelly Monteleone

Haven't received your message for a long time. I am checking the status of this case. Please let us know if you would like further assistance.
Kelly Monteleone 55 Reputation points

2025-03-03T17:57:15.34+00:00

Sorry - very busy season (which is of course when things break). I had a support meeting on Friday with Microsoft. We still don't have a solution. Was told that others had this issue resolved by creating a new Windows profile.
Alex Crannis 5 Reputation points

2025-03-04T11:39:44.52+00:00

Hey all,

Just to add to this, I am experiencing a similar issue, and it's been documented on a Reddit thread in r/outlook - https://www.reddit.com/r/Outlook/comments/1inqxgy/new_outlook_crashing_when_hitting_show_all_for/

Workaround solution is to click three dots next to the calendar and select 'Show more calendars.
David Toscano 0 Reputation points

2025-03-07T05:39:18.65+00:00

We have the same issue. The main email address is the one we have the problem with when I try to look at calendars that are shared with me. It has only become an issue recently.
Peter Watson 0 Reputation points

2025-03-12T13:31:19.44+00:00

I have the same issue. Crashes when I select Calendar - but not always. I have a google account alongside my work account.
John Benstead 5 Reputation points

2025-03-16T00:53:16.7833333+00:00

Thanks @Alex Crannis that worked for me

Answer 2

Hi all - I'm sorry so many people are having this issue. I don't know what finally fixed things, but the Microsoft support team asked me to try again last week, and now everything is working correctly again.

Steps that were taken:

uninstall and reinstall Outlook
running the repair tool
switching between classic and new outlook
deleting old Outlook profiles (old control panel/mail (Microsoft outlook) - I had 2 profiles
ensured immersive reader was closed/off

What worked... traveling for work and not being at my computer ... sorry, I know this is not helpful.

Microsoft's recommendation was to create a new user profile. Good luck to all.

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Outlook crashes when I expand calendars

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