Forum Discussion
Outlook Insider not starting
My Outlook, since upgrading to the latest Insider build (Version 2206 Build 16.0.15321.20000) 64-bit , stop starting, just sitting on the splash screen stating it was "opening profile". I have created a new profile and while my old MSN e-mail will load, as soon as I add an Office 365 account, it stops working. After multiple start / stops, it will get to my MSN inbox, but then I'm faced with a white screen of death.
It is as if it can no longer work with O365 accounts. I have several and I have tried more than one.
I've tried starting with outlook /safe, but while it may start, I still move to the white screen of death when I click on items.
Should I wait long enough, I can see my mail boxes, but if I try to expand an Office 365 mailbox by clicking on the ">" in the folder list, I get this appear, eventually:
Any suggestions? I'm running Windows 11, Dev Insider too. I've got 100gb free in disk space, 64GB ram etc, so I do not think I have a resources issue.
- I Guess this is conflicts due to POP3 and IMAP email data compatibility and supporting.
- Dhetechup - are you sure you posted this to the right thread? There has been no mention of POP3 or IMAP and in my case, all of my accounts are Outlook or Office 365 accounts and are HTTP connections, not POP3 or IMAP.
Thanks- .ost is an offline storage table (orphaned file of Server email database) that requires authentication so one can open and read emails. ESP connection and server connectivity
David Overton It's a bug in this "Experiments" section, some of which have been known to cause problems before and which you can delete. Note that it comes back upon restarting Outlook the first or second time, so you'll need to do this again until it's fixed in an upcoming build. You may see one or two things go away when doing this, like the "Coming Soon" toggle as well as the new-style left-side navigator, but who cares.
HKCU\Software\Microsoft\Office\16.0\Common\ExperimentConfigs16.0.15330.20004 is now out, but it takes a while for "Experiments" to return so I don't know if it's fixed or not. Someone who never deleted Experiments would know.
Update: Looks like the problem is still there. Upon further testing, at least here it relates specifically to 1.28 here:
HKCU\Software\Microsoft\Office\16.0\Common\ExperimentConfigs\Ecs\outlook\ConfigContextDataI would suggest just deleting 1.28, if you have it.
David Overton xyzxyzxyz With a workaround as a stopgap (see above), I'm starting to wonder why I see this problem with some and not others when everyone is using an Exchange account.
Do you have any ideas? Could the version of Windows be involved? What are you running? It does happen that the one having the issue is on Win11 Dev (25xxx) while the one who doesn't is on Win11 22H2 (22621), but I find it hard to believe that's it.
It might also be something about the Exchange account, as there are countless variables there, but we've tried multiple ones (in different profiles) and that so far hasn't been the answer. It remains consistent one way or the other: always a problem or never one.
- Same here, upgraded to insider version 2206 Build 16.0.15321.20000, 365 no longer works. I have to reinstall current version to get it working again.
