If your Outlook crashes when opening Outlook Fix Blog or on startup or even if Outlook stucks at Processing, you can fix it by opening Outlook in Safe Mode. To open Outlook in Safe Mode, follow the instructions below. You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook starts. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. Then, each item in your calendar folder is checked for known problems that can cause unexpected behavior, such as meetings that seem to be missing.

A corrupted new profile or Outlook profile can lead to delays, crashing, Outlook Fix Blog or the Outlook not responding error. If creating a new profile solves your issue, you can return to the Show Profiles dialog and delete your old profile. Your profile stores a variety of settings that control how Outlook looks and feels. You can create a new profile and then add your email accounts to the new profile.

We have multiple tools to help you automatically diagnose an issue, troubleshoot, and fix problems with Outlook. If Startup Repair detects any of these issues, it will attempt to fix them automatically. If it cannot fix the problem, it will provide a detailed report of the issues it found.

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 It could be as simple as an out-of-date version of Outlook's software.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 Outlook Fix Blog password, even after you've logged in. This slows down productivity and quite frankly is just a total nuisance.

Specifically around FSLogix (which we use) and a known issue. We’re going to add the registry setting to roam the paths listed in the known issue and re-register appx and see how we go. There are also notes about legacy per-user auth being an issue, however we had two accounts left in per-user auth but none with the issue. If you think that it is patch related, roll back the patch and see if that fixes it for the end users.

If you would like a deeper explanation or step-by-step instructions, scroll down to the section covering your issue Outlook Fix Blog for more details. If you're committed to the task of Outlook troubleshooting in the meantime, let's get into our guide that will help you solve some of the most annoying Outlook issues. The classic Outlook consistently failed with CAA2000B or 4usqa, depending on the account state. However, when signing in using the new Outlook app, everything worked. Outlook sign-in failures started appearing in multiple tenants without any obvious cause.

Due to the large number of affected users, the automated fix took time Outlook Fix Blog to apply. Microsoft advised using a manual workaround to restore access more quickly. A notification will be sent once the incident is fully resolved. We can diagnose and fix several common Outlook connectivity issues for you. If our automated tool can't fix your issue, or you'd like to fix it yourself, see the next section. Sometimes, antivirus real-time scanning can slow Outlook down.

Start Outlook in safe mode to fix "Processing" screenIn Windows 10, choose Start, type Outlook.exe /safe, and press Enter.In Windows 7, choose Start, and in the Search programs and files box, type Outlook /safe, and then press Enter.In Windows 8, on the Apps menu, choose Run, type Outlook /safe, and then choose OK.

After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, Outlook Fix Blog but we recommend moving to Windows 11.

Start classic Outlook in safe modeIn Windows 10, click Start.Type Outlook /safe, in the Search programs and files and then click OK.Close and re-open Outlook.If the issue is resolved, you can keep working, or if you have time, take the following steps to find out what COM Add-in is causing the problem.

You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors. Are you having trouble starting Outlook or receiving "Cannot start Microsoft Outlook. Cannot open the Outlook window" error messages? We can fix the problem for you, or you can use the troubleshooting steps we're providing below to help resolve these startup issues. If your Outlook is working fine now, it means add-ins are the culprit. But it is important to identify the specific add-in that was causing trouble. To identify that, check the add-ins one at a time and restart Outlook.

If it were me, I’d run either Process Explorer or Process Hacker and check the CPU levels while watching the person work for a few minutes. My guess is it’s got some kind of real time updating going on that’s hogging Outlook’s little slice of processor. Ifso facto, you can start looking for options that allow for this sort of thing and turn them off until it stops. If yes, then don’t worry, we’re here to fix it with effective solutions. Sometimes outdated or over-protective anti-virus / anti-spam programs can conflict with Outlook or with one of your Outlook add-ins. As a result, the anti-virus blocks the add-in and prevents Outlook from functioning properly.