A damaged or corrupted Outlook user profile is a common reason for "Outlook won’t open" errors. Creating a fresh profile can provide a clean slate for Outlook to start. Outlook stores all your email messages, meetings and events, contacts, and tasks in data files. You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors.

Maybe you've added a new program to your computer that doesn't get along with Outlook, or your system has a virus. Regardless of the specific cause, there are several key troubleshooting fixes to try that might help. This command clears any broken settings related to the navigation pane and can frequently fix startup issues. Below, we’ll guide you through a series of solutions, from simple, quick fixes to more in-depth repairs, to help you get Outlook up and running again. If it starts without any problems, you can check Official Fix Outlook guide the add-ins. Moreover, it will help you to get the answer to which add-in is causing the issue.

Conflicting rules can prevent certain rules from working Official Fix Outlook guide as intended. Review your rules to identify any conflicts and resolve them by disabling or adjusting overlapping rules. Look for anti-spam software that also flags websites you visit, enabling you to scan for and prevent online viruses.

If you’ve tried everything and Outlook still isn’t working, it might be time to use a trusted and automated Outlook data file repair tool. 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. In many organizations, Outlook is one of the most common and core programs that are used from day to day.

Outlook.com (the web version of Outlook) and Outlook apps require a 1st party alias (Outlook/Hotmail/Live/MSN) to send and receive email, use calendar, etc. Occasionally, classic Outlook tries to run a process in the background. Auto-archive, sending and receiving a very large attachment, or running some of the other mailbox tools Official Fix Outlook guide can all be done in the background. Check the status bar at the bottom of the screen to see if another process is running. If so, wait a short time (usually two or three minutes) to see if Outlook starts working again.

Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities. To install the latest Windows and Office updates, click the link below. If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or you may need to update Outlook. The first thing you should try is to fix the basic Outlook issues. For this, you have to start with repairing the Office installation itself.

For more in-depth investigations, you can rely on the results of specific data-gathering remote actions. This page will guide you through the structure of the content and how it can be used. Once done, check if the Outlook performance issue is resolved. Check whether the Outlook is running slow problem is resolved. So yes, 2 minute delays are normal in Outlook desktop as the network architecture is completely different than Outlook mobile, as @rod-it ​ laid out. Outlook desktop is obviously a much more robust client as well, so there can be a few seconds attributed to processing at the client end.

Sometimes, when Outlook isn’t working right, a simple restart can help. When you turn your computer off and on again, Outlook and your computer may solve many problems. As a result, it helps to clear out any issues or things that might be causing trouble, like when you clean up a messy room.

So, we have produced this list of general things to try to resolve your problem in Outlook. To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device. If you're still unable to send or receive email, read how to Fix Outlook.com email sync issues. Blocking someone doesn't stop their email from coming to your mailbox, but it does automatically move the message to your Junk Email folder where you can review it (in case it was blocked in error).

Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove. For more information, see Introduction to Official Fix Outlook guide Outlook Data Files (.pst and .ost). A corrupted profile, a damaged PST file, faulty add-ins, or improper Outlook startup settings often cause this issue.

It enables you to verify its performance and functionality and ensures your critical data can be recovered without hassle. Before making changes, make sure to save your Outlook stuff to Official Fix Outlook guide keep it safe. If Outlook still doesn’t open after trying these fixes, you might need more help. Asking IT experts or Microsoft’s support team could give you the best solution for the Outlook problem you’re facing. You can start Outlook in safe mode, disable your add-ins, and then try to open Outlook normally.