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If you are having issues sending email, this might be due to validation issues with your Microsoft Account. Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account. None of the events or information was lost in the move to the new calendar. The Family group calendar now appears in the Outlook.com groups area in the left nav on Outlook web and in the groups area of the Outlook mobile app.
We will update this article as soon as we have more information on a fix. This issue has been fixed for Outlook.com country domains. If you used the workaround below you can now switch from using an Outlook.com alias to your country's domain. The root cause has been isolated to a bug introduced in build 8962, which was partially reverted, and further mitigation efforts are ongoing. If you're having problems accessing Outlook.com, you can see the status of Microsoft Office Online Services at the Service Health portal.
Once you're able to get back into your account, review How to help keep your Microsoft account safe and secure. Here you'll find guidance for how to secure your account going forward, make it easier to reset a password, and provide additional methods you can use to verify your account. We'll send the results of your recovery request to the working email address you provided at the beginning of the form within 24 hours.
Sometimes you’ll open Outlook and then for no apparent reason, it will freeze or shut itself down. There are quite a few different causes for this, but one of the most common is a defective add-in. Here’s how to disable add-ins in Outlook even when it keeps crashing. Corrupted or badly set-up Outlook profiles can often cause start-up problems. The app might refuse to launch or crash at the splash screen. However, like any software, Outlook isn’t immune to issues.
The steps below will help guide you <a href="https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide/">microsoft 365 error resolution</a> when filling out the account recovery form. It can be a lengthy process as it's designed to ask questions about your account that only you can answer. After you run the antivirus app, sign in to your account and change your password. Now, we have clients that are using office 365 that we have username and password, but do have number authentication when signing in. I was able to reset the password yesterday, but every login is requiring me to send a code to the number that is owned by the previous network manager. Find solutions to common problems or get help from a support agent.
The tool will ask for your email address or phone number, and either show appropriate self-help, or offer the chance to talk to an agent. We'll use the same working email to send you instructions for how to sign back into your account. You'll be asked to provide the hardware ID of a console that you've used frequently.
Find solutions to common problems or get help from a support agent. Once you are in the microsoft folder, delete the OneAuth and IdentityCache folders. You can also cut and paste them to a different location like your desktop. To do this, open Credential Manager from Control Panel by just typing the word Credential after hitting the Windows key. Notice everything that references Microsoft online, and all those "msteams" items, too. I think I’m going to try what I mentioned in my last post and see what happens.
From Outlook desynchronisation to problems with OneDrive connection. The tool can help you detect issues by running tests for many features. To avoid data loss when using cloud applications, perform Office 365 data backup. NAKIVO Backup & Replication is a universal data protection solution that can protect not only Office 365 but also virtual, physical, and cloud environments. Download the software and configure data backup in your environment. OneDrive issues are a separate category of problems with Microsoft 365.
I have encountered some people who have constant problems logging into Microsoft/Office 365. Most often it’s been a user misunderstanding, which means they enter panic mode and start clicking and resetting passwords in a desperate attempt to get the prompts to go away. No one should have to go through that type of frustration and aggravation.
If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. Use the Microsoft 365 shared computer activation (SCA) troubleshooter to enable shared computer activation for Microsoft 365 applications. Use the Microsoft 365 sign-in troubleshooter to help resolve sign-in issues encountered with Microsoft 365.
If you see the message "The Microsoft account you've entered does not exist.", check the spelling of your entry carefully. If it's correct, please read My username and password have stopped working. If you used the account with any of the products and services below, expand a section to see more information on questions that can be asked. You'll be asked questions that are specific to the account you're trying to recover. If you're not sure, guessing is ok—wrong answers don't count against you. When you get to a question that lets you "add more," fill in as much information as you are able.