The Credential Manager is where Windows stores passwords and login information on your computer. It acts as a vault with specific settings and permissions you can adjust. Every antivirus software is different, so you'll want to look up how to specifically enable Outlook with the software you're using. 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 It could be as simple as an out-of-date version of Outlook's software.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.
If you're entering a password you know is correct and getting a message that says "incorrect password," then you'll want to read this page. If you are using Gmail or Google Workspace as well as the Outlook calendar, it would be nice to have them populated with the same information. Here is how to make sure your Outlook is showing the same information as https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html your Google Calendar. If nothing else fixes your Outlook search problem, then your Spotlight index may be corrupt. Let's cover how to troubleshoot the Outlook indexing first. For all of the Mac users struggling with Outlook not responding, we have a few pointers for you as well.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. With the window with the Windows Update, you will see all the updates you need to make for your Microsoft Office. Compatibility mode is suitable for older software with Windows 10 that fail to run normally. Thankfully, Microsoft Outlook is fully optimized for Windows 10, meaning Compatibility mode is not necessary. You might be wondering what happens when you switch on the Compatibility mode for Outlook. When you do this, your Outlook might have opening problems.
Most likely, your Windows is running 64-bit with Office 32-bit. Use the Office 64-bit release, if supported by your organisation. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. The settings in the Send/Receive Group windows let you customize the synchronization rate of the new group. One of the best things you can do- third party add-ons can slow Outlook down and cause lockups. To investigate any reported issues, dashboard filters, and drill-down investigations can be used to narrow the focus and take remedial action.
This goes to prove that the problem came from your original Outlook profile. With great functionality, you can manage your email, contacts, calendar as you like. Try these troubleshooting steps in the order presented here, from simple to more complicated. However, if you encountered other issues like Outlook not responding, learn how to fix Outlook not responding https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html here. Check the solutions to fix "Outlook not opening" problem and how to avoid "Outlook won't open" again.
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. Your Outlook profile holds all your account settings and data configurations.
If you are dealing with a broken Outlook, then it doesn’t always mean you need to call tech support or start over from scratch. With the right steps, you can repair Outlook manually and get https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html back to work in no time. You should start with the easy fixes, like repairing Office or turning off add-ins. If that doesn’t work, try using the Inbox Repair Tool or creating a new profile. And if nothing else helps, there are great tools out there that can recover everything for you. Take it one step at a time, and you’ll have Outlook working again soon.
If it never worked before or if you are starting Outlook for the very first time, it could very https://office365emailfix.blogspot.com/2025/10/fix-outlook-not-sending-or-receiving.html well be that you have not configured your mail account correctly. A common mistake is choosing for an Exchange account while in fact you are using a POP3 or IMAP account. Sometimes when a user tries to search in Outlook, it either returns incomplete results, or returns nothing at all, even if you can see the email normally. Most times, this is caused by a corrupted search index, which you can rebuild. Keep in mind this does take a while, and it’s usually best done after the user has left for the day. In many organizations, Outlook is one of the most common and core programs that are used from day to day.
After running any of the above processes, make sure you check for updates again to verify that all updates have been installed. The instructions given in the error will seldom actually fix this issue as the issue is more likely to be caused by the add-in itself, rather then by an Outlook installation issue. When typing, please note the space between outlook.exe and /safe.For alternative methods of starting Outlook in Safe Mode see this Quick Tip.
For more information, see Introduction to Outlook Data Files (.pst and .ost). 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.