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on December 25, 2025
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.
"Unable to install this application because an application with the same identity is already install... If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or visit Fix Outlook Site you may need to update Outlook.
Regardless of the specific cause, there are several key troubleshooting fixes to try that might help. I just have the hourglass that disappears after a minute. After multiple restarts the program will open one time, then reverts. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. A well-running Outlook will ensure that you enjoy the full benefits of this visit Fix Outlook Site popular email program. If you follow the above solutions, your Outlook will perform according to your expectations.
If you are unable to connect or are prompted for your password repeatedly attempt the following options. After finishing one step, if it does not resolve the issue move on to the next. This option could be useful if you constantly have to wait for Outlook to rebuild its data file visit Fix Outlook Site when you restart.
After you've selected a task, you can use the details pane to do things like add more information, add steps, or mark as important. You can view more than one calendar at a time, add other calendars, choose which calendar to display, and visit Fix Outlook Site create new calendars. Select More to see additional actions—for example, an option to print a message. If you want to learn about printing, see Print attachments received in email messages. Given the wide variety of Outlook issues that can exist, there is no go-to solution that will fix them all.
For more information, see Introduction to Outlook Data Files (.pst and .ost). If Outlook worked correctly the last time and nothing has changed about your account configuration, then checking if things work correctly in Safe Mode is a good first step. Starting Outlook in Safe Mode will prevent some or all add-ins from being loaded, prevents several settings files from being loaded and turns off the Reading Pane.
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 this profile becomes corrupted, it might fail to load or cause Outlook to crash upon opening. Such corruption could result from improper shutdowns, software conflicts, or corrupted files within the profile. Microsoft regulatory releases new updates for Outlook and Windows (or macOS).
A vast community of Microsoft Office365 users that are working together to support the product and others. 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. Find solutions to common problems or get help from a support agent. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. visit Fix Outlook Site Outlook may be running with settings meant for an older Windows version.
Outlook supports sending from a secondary connected account for Microsoft owned domains such as @outlook.com, @live.com, @hotmail.com but has not implemented this functionality for third-party domains. This alias will be added to their account as a secondary alias, with the original 3rd party alias will continue to be set up as the primary. Once this step is complete, the user will land in their Outlook inbox and be able to use all Outlook functionality with visit Fix Outlook Site this new email address. You can also add the secondary connected accounts (Gmail, Yahoo, etc.) in Outlook.com as additional accounts in the Outlook profile.
Simran Bhatia is a technical content writer engaged in writing clear, concise, and SEO-optimized content. With a background in computer science and a passion for writing, I thrive to deliver complex technical content in simple layman terms. This method using the SCANPST.EXE will not work if the PST Files are in bulk or they are encrypted.
Sometimes, a weak or unstable internet connection can cause Outlook to misbehave. To check if this is the issue, temporarily disconnect from your Wi-Fi or unplug your LAN cable, and then try opening visit Fix Outlook Site Outlook again. If you receive a connectivity error, your network might be to blame. You can also connect to a different Wi-Fi source to see if that resolves the problem.