As your mailbox size increases, more resources are required to open each folder. If you have a large number of items in any single folder, you may experience performance issues during certain operations. For more information, see Outlook performance issues when there are too many items or folders in a cached mode .ost or .pst file. When you install Outlook, an Inbox repair tool (scanpst.exe) is also installed on your PC.

How to Close Unresponsive Outlook on WindowsOpen Task Manager: Right-click on the taskbar and select "Task Manager" or use the Ctrl+Shift+Esc shortcut.Locate Outlook Process: In the Processes tab, find the "Outlook" process.End the Task: Right-click on the "Outlook" process and select "End Task."More items...

The first possibility of receiving this message is that the Outlook HotmailConnector is no more present on your system,however,your MS Outlook has MSN/Hotmail configured account. Before proceeding with any fix,it's recommended to close all other Microsoft applications to prevent any conflicts. The folders storing all of your mail might be struggling to run because of how large they are. You can set up auto archiving to smooth out some of this issue. You should also keep reading about how to fix another typical outlook issue, PST file issues. Also, '-g' represents the default location of Outlook installation and the address after '-d1' describes your profile folder's default path.

Avoid frustration and wasted time with a slow Outlook on Windows 10. This post provides practical solutions to speed up your email program. Using products such as Windows Desktop Search and Google Desktop Search is a great way to be able to quickly find email messages. However, if you are not careful, steps to fix Outlook not opening these products my negatively affect Outlook’s and your computer’s performance. Be sure to configure them to only index the email messages and files which you need to be able to find quickly.

How to resolve Outlook errors detected in an OST file?Method 1: Restart and open Outlook in Safe Mode. ...Method 2: Repair OST file using Inbox Repair Tool. ...Method 3: Delete and recreate the Outlook profile. ...Method 4: Repair OST file and convert OST to PST with EdbMails.

If you manually type in the secondary connected account email address in the "From" field, the email is sent as "On behalf of" your primary Outlook.com account. A software rollout over the weekend was deployed incompletely, causing one component to send a high volume of messages to another component that had been deleted, overwhelming the routing plane servers. Availability has recovered, and engineers are investigating the root cause and identifying steps to fix Outlook not opening problematic servers. The team is sweeping all remaining capacity to identify and address residual issues. Get Help has troubleshooters for classic Outlook for Windows you can run for many common scenarios, such as Outlook startup or profile setup problems. These often help resolve issues without the need to contact support.

Check your settings to see if you've got the "always prompt for password" feature enabled. It could be as simple as an out-of-date version of Outlook's software. Once an update has been run on your system, the bug may be rectified. Outlook has a bug where it repeatedly prompts you for your steps to fix Outlook not opening password, even after you've logged in. This slows down productivity and quite frankly is just a total nuisance.

While the above-stated methods occasionally make some difference, they are, however, adversely tainted by significant limitations. Hold the Ctrl key and drag-and-drop the items into the folder of steps to fix Outlook not opening the new PST file. Name the new PST file, choose a save location, and click 'OK'. After the repair, a 'Repair Complete' popup will appear