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You cannot create a new email address with @live.com as the domain address. You cannot create a new email with @msn.com as the domain address. If you have not logged in to your email address in over two years, it will be considered inactive and may have been removed.  
  
To find the item with the attachment, scan the list of items in the thread. You can give feedback by selecting Help from the top menu, then Feedback. Post questions, follow discussions and share your knowledge in the Outlook.com Community. If your mailbox is full, we won't be able to reply to your request.  
  
I would say first things first is figure out if any of these actually resolves her issue, and then (if so) document it on a quick 1-pager that she can follow if/when you’re not available. When the scan is done and errors have been fixed, run scanpst.exe again until no errors are found anymore. If after scanning the file more than 3 or 4 times errors are still found, you might want to copy over your data in a new pst-file. We have tried all things mentioned above (except reconnecting the MS account), but the only solution so far is deleting the users profile.  
  
Whether it’s creating a new outlook profile or setting up your primary email, we’ve got you covered. Sometimes a Windows update or app update—meant to fix things—ends up causing the problem. Especially if you’re using a different version of Windows, this can break compatibility with Microsoft Outlook or Outlook configuration files. If Outlook still misbehaves, your antivirus might be Fix Outlook Support the culprit.  
  
ProcedureExit Outlook.Open a Run dialog box. ...Type Outlook /safe, and then click OK.If the issue is fixed, click Options on the File menu, and then click Add-Ins.Select COM Add-ins, and then click Go.Click to clear all the check boxes in the list, and then click OK.Restart Outlook.Jun 25, 2025  
  
To sum up, we explored several methods to fix "Outlook won’t open" errors. Whether it’s a profile issue, a corrupted PST file, or faulty add-ins, the methods above can help you get Outlook running again. When Microsoft Outlook refuses to open, it’s incredibly frustrating. This issue often stems from common culprits like a corrupted user profile, a damaged data file (PST or OST), or even a minor conflict within its settings or add-ins.  
  
One of the first and most effective steps is to launch Outlook in Safe Mode. This mode turns off all add-ins and custom settings, helping you quickly identify if a third-party add-in is causing the Fix Outlook Support startup problem. After running any of the above processes, make sure you check for updates again to verify that all updates have been installed. Did Outlook still work correctly the last time you used it?  
  
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. A corrupted profile, a damaged PST file, faulty add-ins, or improper Outlook startup settings often cause this issue. Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove.  
  
Corrupted or badly set-up Outlook profiles can often cause start-up problems. The app might refuse to launch or crash Fix Outlook Support at the splash screen. The PST files will be repaired and the error will be resolved. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Try steps 1 through 3 in order until the issue is cleared. If you see a .pst file instead, skip this fix and check fix 6 below.  
  
If your account hasn't been active in over 270 days, it is considered inactive. Live.com addresses are gone forever when they are deleted. Some of these accounts still exist as legacies, but it's confusing to sort through what is being phased out and what will remain available. Users feel the platform is not designed intuitively, and there have been a lot of changes to keep up with. The first rule of Outlook troubleshooting is to eliminate the most obvious suspects.  
  
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.  
  
Along with that, it will be helpful to keep your folder structure safe. In addition to that, it is usually easy to use, even if you’re not a tech-savvy person. If Outlook works fine now, you know one of those add-ins was the problem. So, it will be helpful to find out which one caused the issue. In short, even small things can make Outlook stop working. But the good part is, you can fix most of these problems with simple steps.