New Outlook App 1.2025.813.500 causes crashes

Hi,

A colleague and I installed an update of New Outlook app through the Store but it seems broken.

See: New Outlook doesn't start anymore - Microsoft Q&A

The "accepted solution" suggests to remove some folders to redo the account setup but the issue comes back. The only solution for now is to use the regular Outlook application.

Kind regards

Odd, it never updated to that version as I am still on 1.2025.716.500.
For the reason you reported, MS may have stopped the rollout.

blacklord049 said:

Hi,

A colleague and I installed an update of New Outlook app through the Store but it seems broken.

See: New Outlook doesn't start anymore - Microsoft Q&A

The "accepted solution" suggests to remove some folders to redo the account setup but the issue comes back. The only solution for now is to use the regular Outlook application.

Kind regards

Click to expand...

Hey,


I have found a temporary fix for this crap. I've spend more than a few hours digging around.
Event viewer kept flashing ID 1001 and 1000 with it pointing to UCRTBASE.DLL.

The fix mentioned in the Q&A refered to deleting the folders: C:\Users\<your username>\appdata\local\microsoft\OneAuth | and Olk. This works exactly ONCE. it starts, you can use it. the moment you close it, it just sh**s itself again.

The fix i found so far that actually works:
Download the offline installer for it from: Deployment overview for the new Outlook for Windows (gives me the version 1.20,25.806.300)

Other things i've tried but were unsuccessful:
- Scanning and repair windows problems (SFC /scannow) (dism.exe /online /cleanup-image /scanhealth and restorehealth)
- Repairing and installing .net installations.
- Repairing and installing Microsoft Visual C++ 2013, 2015-2022 Redistributable from the control panel.
- Multiple reboots
- Deleting and reinstalling office multiple times over.

Seems like its a bug in this new verison: 1.2025.813.500

Windows OS info: Windows 11 Enterprise Multi session
Version: 23H2
Build: 22631.5768

Here is the event id 1000
Faulting application name: olk.exe, version: 1.2025.813.500, time stamp: 0x689d590e
Faulting module name: ucrtbase.dll, version: 10.0.22621.3593, time stamp: 0x10c46e71
Exception code: 0xc0000409
Fault offset: 0x000000000007f6fe
Faulting process id: 0x0x3930
Faulting application start time: 0x0x1DC1128E98429C5
Faulting application path: C:\Program Files\WindowsApps\Microsoft.OutlookForWindows_1.2025.813.500_x64__8wekyb3d8bbwe\olk.exe
Faulting module path: C:\Windows\System32\ucrtbase.dll
Report Id: d3277cf3-9125-4480-9518-7f95e093a3b2
Faulting package full name: Microsoft.OutlookForWindows_1.2025.813.500_x64__8wekyb3d8bbwe
Faulting package-relative application ID: Microsoft.OutlookforWindows

Thanks for sharing.

I think they pulled out the broken update because on my personal laptop Microsoft Store doesn't give me an update past 1.20.25.806.300

I'll try your solution on my work laptop if they don't provide an update tomorrow.

blacklord049 said:

Thanks for sharing.

I think they pulled out the broken update because on my personal laptop Microsoft Store doesn't give me an update past 1.20.25.806.300

I'll try your solution on my work laptop if they don't provide an update tomorrow.

Click to expand...

Did you have success with it as well?

Yes, downloading the offline setup restored the previous version, thanks!