Outlook 365 suddenly won't open

Hello; Outlook worked this morning, now it won't open, says to open in Safe Mode, but that doesn't work, tries to open for 5 seconds than nothing. Restarted PC and no help. Please advise! Steven F 60...

outlook for windows

Steven_F_603
Jul 15, 2020
RobWill_19
Steven F, original poster here: my Outlook just fixed @ 1:20 Pm pst, I tried it and it opened right up. Hope the same for all of you, maybe 1 at a time! Thanks all.......

JRM2020

Copper Contributor

Jul 15, 2020

JRM2020

SOLUTION

See solution here - worked for me - rolled back to previous version - that was easy - only took 3 hrs to fix 🙂
https://www.reddit.com/r/sysadmin/comments/hrq0mn/outlook_immediately_crashing_on_open_after/fy5nnx2/

Lepalma

Copper Contributor

Jul 15, 2020

This is the solution, work for my users!

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Outlook 365 suddenly won't open

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