Describes an issue that triggers an 'Outlook not responding' error message or Outlook freezes when you open a file or send an email message in Outlook 2016, Outlook.
Then once the User Accounts section of Control Panel has opened click on Mail (Microsoft Outlook 2016) 4. Then once Mail Setup has opened click on Show Profiles 5. Click on the first user profile and then choose Remove, repeat this step for all user profiles. After completing all the steps you can start Microsoft Outlo0k again, and outlook will ask you to set up your mail accounts like you had to do when you ran Outlook for the first time. While this isn’t the best solution, at the moment it does seem to like the only solution that always works.
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I have an oddity of problem with my Outlook's stability. It seems to be freezing up, not at random intervals, but based on a seemingly strange combination of configurations. I have been trying many different combinations, I've even devolved to 'Cargo-cult' debugging, since I have no clue what is causing this. I would highly recommend to get a better idea of what exactly is causing Outlook to lock up. You've already done some work in this regard, awesome!
You should try to run Wireshark or similar utilities to see if a certain part of the client-server communication causes Outlook to wait for a reply indefinitely. You should also try running Process Monitor to capture a log of the application actions.
Start the log, get Outlook to lock up and then see what the last things were that Outlook performed. – Aug 23 '13 at 17:12. Try to break your big accounts into smaller files.
Mail on Outlook used to be stored on a big file. Indexing and compressing can take a lot of time. Also, it seems you might have connectivity problems.
This would certainly cause Outlook to be unresponsive. Try search Event Viewer for connectivity problems around the time Outlook hangs. (I'm thinking downloading a large chunk via http and getting a small packet loss might drive Outlook crazy) Check the size of the folders on disk versus the compress, indexing and auto-clean-up properties. I had also irregular freezes, created new accounts from scratch, started outlook in safe mode, diasbled ALL add-ins, disabled hardware acceleration, ran scanpst countless times on all pst's. Really spended / lost an entire day on this and then eventually it dawned me that it had to do with internet communication, hence proxy settings. After clearing the pac files and removing prox settings ( including reg files ) finally i can type an e-mail again in one go, or go from one e-mail account to another, or simply browse my e-mail. Without having to wait 20 - 30 - 40 seconds freezes.
I hope this can save someone else numerous hours trying the same steps one by one. PS: this was outlook 2013, but it surely is valid for other outlook versions. A wireshark or other sniftool is not bad idea and probably would have saved me a day.
Cheers, Snowride. I am not 100% sure what actually fixed the problems I was having, but apparently something I did made it stop happening. After everything else I did as in the question, I did one more thing before trying to debug the process or communications - I deleted the OST file, for the problematic (small) Apps account (while Outlook was closed, of course). Since then I have not seen the recurring problem again, so it seems apparently that this fixed it. It may have been a corrupt file, although I did remove the account before, so. Anyway, all the other suggestions were good, it just wasn't the issue here.
For me, my freezing problems are solely from ActiveSync / Exchange. Whenever I attempt to send an email, viewer an email, access my contacts and Outlook 'Stops responding' I take a look at the Outlook icon and sure enough Outlook has connectivity options with my Exchange server. This disconnection problem occurs at any time from changing networks to resuming from sleep to starting a VPN - anytime I change my network configurations or IP addresses. I doubt that the issue is with the Google Apps accounts (I use Google Apps and Exchange). IMAP does not require an active connection, while Exchange does.
(IMAP can and Google supports it, but Outlook does not) I think the problem lies with the Hotmail Activesync setup (Mobile Exchange). Your observation 'With only the Apps account enabled, it seems to not lock up.' Would seem to support this conclusion - simply, whenever Hotmail looses the connection to Exchange, Outlook may freeze while it attempts to reconnect. I recommend using Hotmail in IMAP mode and see if your issues are still present. Outlook kept hanging up / freezing / not responding when I sent an email. I Even after a clean system refresh, online repair of office 2016, uninstall and reinstall of office 2016, only using an outlook.com email account with only 100 megabits of data, deleting profile and resetting it 3 times, uncheck graphics hardware acceleration, and everything else I could find on the web, I finally fixed the problem on my Windows 10 machine. I uninstalled Office 64bit and installed Office 2016 32bit.
![Outlook 2016 Freezes Constantly Outlook 2016 Freezes Constantly](/uploads/1/2/4/1/124155022/503747827.jpg)
No problems since then. Suprised that it was so difficult to make outlook.com work on Outlook.