![cannot open outlook 2016 says was not cleanly closed cannot open outlook 2016 says was not cleanly closed](https://cdn.ablebits.com/_img-blog/cannot-start-outlook-solutions/resrore-outlook-pst.png)
![cannot open outlook 2016 says was not cleanly closed cannot open outlook 2016 says was not cleanly closed](https://images.idgesg.net/images/article/2020/06/cw_microsoft_2016_2019_outlook_cheat_sheet_2400x1600-100849338-large.jpg)
- #Cannot open outlook 2016 says was not cleanly closed 64 Bit
- #Cannot open outlook 2016 says was not cleanly closed 32 bit
- #Cannot open outlook 2016 says was not cleanly closed professional
Issues while starting up with the navigation pane can prevent Outlook 2019 from opening correctly.
![cannot open outlook 2016 says was not cleanly closed cannot open outlook 2016 says was not cleanly closed](https://cdn.ablebits.com/_img-blog/outlook-not-responding-solutions/disable-outlook-addins.png)
Open the control panel by Start > Control panel.You can determine whether it is corrupted or not by making a new profile and changing it to the default program which opens with Outlook 2019. Your profile contains your account settings and occasionally it can get corrupted. Sometimes the reasons why Outlook 2019 won’t open is in your profile. After capturing the titles of the selected Add-ins, clear all the check-box in the COM Add-ins list.As a precaution take Screen-shots of the list of Add-ins before you disable them.Make sure manage box of the View & Manage office Add-ins shows COM Add-ins & then choose GO.PST Repair Tool is one such tool that is used to repair highly corrupted PST files, & recover mailbox data from damaged Outlook PST files.
#Cannot open outlook 2016 says was not cleanly closed 32 bit
Hopefully this quick easy fix will work for you and save the hassle downgrading to 32 bit or even reverting back to Office 2013.Note: On the other hand if your outlook won’t open in safe mode, then it means your PST file is highly corrupted & you might need an extra powerful automated tool to repair Outlook data file. This easy fix worked for us straight away however according to Microsoft forums some users suggest that after Outlook has been closed and reopened several times the problem comes back, although we have not experienced this yet! Untick “Reduce message size by removing format information not necessary to display the message” Navigate to the Mail section and scroll down to Message Format This isn’t a great solution and so until Microsoft release a fix we found a quick way of resolving this issue:
#Cannot open outlook 2016 says was not cleanly closed 64 Bit
The particular problem seems to lie with the 64 bit version of Office and does not seem to have been reported on any 32 bit version causing some users to downgrade to 32 bit. Whilst displaying html content should not be difficult for an email application, many users with 2016 seem to be experiencing it (see here - ).
#Cannot open outlook 2016 says was not cleanly closed professional
Having upgraded to Office 2016 Professional earlier this month I have come across a frustrating issue within Outlook – an email with html content is not displayed correctly, the alignment is all off and a horizontal scroll bar is displayed so you have to scroll right to see any content. UPDATE: Unfortunately this issue has returned after using Outlook for a while, however closing and reopening Outlook seems to fix it again (temporarily).