Outlook 2013 folders collapse automatically after deleting an email

Hi there

A very strange issue with the sub folders in my folder window,
When my user has their folders and sub folders expanded and then clicks to delete an email suddenly all the folders and sub folder collapse. This has only started happening today but i have no idea why??
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Clark KentSoftware Engineer cum BloggerCommented:
Hello David,

Try to open Outlook in safe mode using following command:

“outlook.exe /safe”

sometimes, add-ins cause such kind of flawes in Outlook’s working.

Clark Kent
Alexa JacksonDigital Forensic AnalystCommented:
Follow these steps to fix the issue: -

•      Start Outlook in Safe Mode and disable Add-ons.
•      Create New Profile.
•      Restart the computer.
•      Reset the setting: View > View Settings > Group By > Expand/Collapse Default > All Expanded.

Thanks & Regards
DavidAuthor Commented:
As this was one of our users it wasnt spotted straight away but ended up that the users so how had draged their main folders into the outbox

once this was moved back that resolved the issue

Thanks for your help

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DavidAuthor Commented:
the other answers were great but didnt solve the problem mainly because not all the facts were present until we found out exactly what was happening
nisam TkCommented:
Hi Team,

 My manager using multiple mailbox in a outlook.he want to expand and collapse all the mailbox in a single click.I think not have any option for this in outlook .Have any plug in or VB script for this?
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