A fix has been published but will take time to propagate to worldwide availability. There is a new symptom of Outlook crashing on launch starting on. Microsoft’s proffered explanation doesn’t pass the sniff test: But this fix apparently didn’t touch PCs at all.

Microsoft’s resorted to some odd patch delivery mechanisms lately (notably using the Microsoft Store ) and it’s had multiple-cumulative-update problems.

How did Microsoft fix it? There was no patch delivered, no new C2R version, no emergency update for Outlook 2019.

Yet, all over the world, millions (if not hundreds of millions) of Outlook users all had the rug pulled out from under them.

What broke? There weren’t any new versions of Office pushed out yesterday.

Two obvious questions present themselves: Lawrence Abrams at BleepingComputer has full details. So for four hours yesterday, you could get at your Outlook email through your iPad, or by hitting the website, but the version of Outlook you probably use on your PC had taken the morning off.Įnds up the sudden disappearance was attributable to the Outlook.exe program crashing with an error 0xc0000005. As a workaround, users can utilize Outlook on the web or their mobile clients… (four hours later) We're rolling out a fix for this issue, and we expect the mitigation to reach all customers over the next few hours. We're investigating whether a recently deployed update could be the source of this issue. We’re investigating an issue affecting user access to Outlook. Microsoft, in its inimitable way, left a trail in its tweets : But it looks like all of the recent versions of Microsoft 365 Click-to-Run Current Channel – dating back to June 30’s Version 2006 Build 13001.20266, at least – as well as Office 2019 packed their bags and left the station.

There are so many programs running around called “Outlook” that it’s difficult to nail down which versions of Outlook went AWOL. Then, four or so hours later, Outlook suddenly started working again. I even tried the full repair (not the quick one), redownloading and reactivating MS Office 2019, but no go. I tried opening in safe mode (it does the exact same process as described above) and restarting the computer to no avail. Looking in Reliability History, it states that Outlook has crashed. Today when I went to check my email, Outlook would not open it would load the “Starting Outlook…” splash screen, which would close without opening the Outlook window itself, and the taskbar icon went away. Both the Click-to-Run version of Office (er, Microsoft) 365 and the installed (MSI) version of Outlook refused to start : At mid-morning Wednesday in the U.S., Outlook stopped working.

Microsoft outlook crashing on startup