How To Fix Microsoft Outlook 2010 Only Opening in Safe Mode?


If you are a client of the MS Office suite, you would have used their personal information manager, Microsoft Outlook 2010. This feature allows you to manage all your personal data in one place, from handling emails to web browsing. Though it is a great application, sometimes it might crash unexpectedly and won’t allow you to reach your inbox or open your files, or the rest of the features may behave awkwardly. In this case, your best chance is to use the program in safe mode, an in-built feature within most of Microsoft’s apps. Doing this solves the issue, but it might further create the problem of Outlook 2010 only opening in safe mode.

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outlook 2010
Outlook 2010

If you’ve got your Outlook 2010 opening only in safe mode, don’t worry, we’ve got you covered. Let’s look into the steps of getting Outlook 2010 out of safe mode.

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How to get Outlook 2010 out of safe mode

Once you’ve opened Outlook 2010 in safe mode, you won’t be able to use all the features, which makes the users want to get back to the normal mode. While the safe mode works quite well for most of the applications, in the case of Outlook 2010, the infamous update of KB3114409 caused the program to malfunction. Not only it forces Outlook 2010 only opening in safe mode, but it also removes the toolbars and maximizes the window.

outlook in safe mode
Outlook in safe mode

You can get Outlook 2010 out of safe mode by

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Deselecting the option of “Run this program in compatibility mode” in settings

Outlook 2010, by default, is configured to run in compatibility mode. By deselecting this option, you can fix this issue. To do so,

  1. Open “Files explorer” 
  2. Search “C: Program Files (x86) Microsoft Office” folder.
  3. Open the “Office” folder and search for “Oulook.exe.”
    outlook.exe properties
    Outlook.exe properties
  4. Go to “Properties” by right-clicking. Under the “Compatibility” tab, deselect the “Run this program in compatibility mode” option.
  5. Click on “Apply” and exit.

Open Outlook 2010 and check whether the safe mode is still on or not.

Turn off Outlook 2010 Add-ins.

Sometimes Outlook 2010 keeps opening in safe mode because of some add-in hindering it. To turn these off,

  1. Open “Outlook” and go to the “File” tab.
  2. Go to “Options” and click on “Add-ins” on the left.
    outlook add-ins
    Outlook add-ins
  3. In the “Manage” drop-down window, click on “Com add-on” and press “Go.”
  4. Deselect all add-ins and click on “Ok.”

Restart Outlook 2010 to check if the errors are gone.

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Run a Scanpst.exe Scan

If the PST file gets corrupted, it might trigger Outlook 2010 only opening in Safe Mode. To fix the PST files, users can do a scanpst.exe scan. To run this,

  1. Open “Files explorer” 
  2. Search “C: Program Files (x86) Microsoft Office” folder.
  3. Open the “Office” folder and click on scanpst.exe to open its utility menu.
  4. Click on browse and select the PST file in documents Outlook file.
  5. Click start to scan and repair to fix any corrupted PST files.

Restart Outlook 2010, and this would solve the problem.

Note: Outlook 2010 should not be running while performing these steps. Also check your system for corrupted or missing updates if the above procedure doesnt work.

Install Update

Microsoft being a renowned company, wouldn’t let their updates be bugged, so to counter the KB3114409 update, a new update, KB3114560, was launched that resolved the issue of “Outlook 2010 will only start in safe mode”.

To install the update, visit the official page of Microsoft updates.

Uninstall Update

Alternatively, you can uninstall the old patch if you can’t download the new patch or if the KB3114409 update is causing the issue. To remove it,

  1. Press the “Windows” icon and open the “Control panel.”
    control panel
    Control panel
  2. In the control panel window, search “Programs and features “and click on “View installed updates.”
  3. Look for the “KB3114409” update in “Search installed updates.”
    uninstall updates
    Uninstall updates
  4. Uninstall it and exit.

Now try installing the new patch if Outlook 2010 is still opening in safe mode.

Rollback Windows 10

If the above-mentioned methods don’t work for you, try to run back windows when you didn’t use safe mode. You can roll back Windows to the time when it didn’t install the update. To do so,

  1. Tap on the “Windows” key and search “Run.”
  2. Type “rstrui” in the dialog box to open the “System Restore” window.
    system restore
    System restore
  3. Press on the “Choose a different restore” option and click on “Next.”
  4. Go to “Show more restore points” and select a time when Outlook wasn’t in safe mode.
  5. To know what all would be restored, click on “Scan for affected programs.”
    restore your computer
    Restore your computer
  6. Press “Next,” once the system is restored, click on “Finish” and exit.

This process would bring back normal mode in your Outlook 2010.

Editing in the Registry Key

The last option that would enable you to remove Outlook 2010 Only Opening in Safe Mode is to edit the registry key. To edit the key,

  1. Go to “Start” and search “Run.” Or if the start button doesn’t work press windows key + X hotkey.
  2. In the dialog box, search “Regedit” and press “Ok.”
  3. In the “Registry editor,” follow the path “HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook \Security\”
    follow the given path
    Follow the given path
  4. When you see the “Security” tab, right-click on it, press “New,” and look for ‘DWORD (32-bit) Value” to open it.
    dword (32-bit) value
    DWORD (32-bit) Value
  5. In the window, type “Disablesafemode” and press “Modify.” In the box that pops up, type value as 1 and press “Ok.”
    enter value as 1
    Enter value as 1

Restart your PC and open Outlook 2010.

Note editing the registry key can cause system lag and you might have to reinstall windows.


When To Use Outlook 2010 in Safe Mode?

Whenever you face any issue like sudden crashes, weird behavior of the app, or email not accessible with Outlook 2010, it is best to enable the safe mode.

How do I Start Outlook 2010 In Safe Mode?

There are many ways to open Outlook in safe mode, the easiest being to press the start key, find the Outlook shortcut, and hold down ctrl. A new pop-up window will confirm whether you want to enable safe mode. Click on yes, and you’ll now be in safe mode.

How do I fix the processing issue in Outlook 2010?

To remove the processing issue in Outlook 2010, open the app in safe mode by following the steps mentioned above.


Hopefully, by following the guide mentioned above, you’ll be able to remove the issue of Outlook 2010 opens in safe mode only. Unfortunately, if you still can’t remove the safe mode,or the app doesnt run you’ll have to reinstall Outlook 2010 on your system. Have a great time using Outlook 2010 back in its normal mode.

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