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How to open Microsoft Outlook in safe/offline mode?

Sometimes, you may need to open Microsoft Outlook in special modes, such as the safe mode, the offline mode, etc. In this article, I will show you how to quickly open Microsoft Outlook in the safe mode and in the offline mode as well.

Open Microsoft Outlook in safe mode

Open Microsoft Outlook in offline mode

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arrow blue right bubbleOpen Microsoft Outlook in safe mode

Normally when Microsoft Outlook gets corrupted by something such as third-part add-ins or extensions, it will restart automatically in the safe mode. If you want to manually open Microsoft Outlook without running any add-ins, you can open Microsoft Outlook in the safe mode easily.

Before opening Microsoft Outlook in the safe mode, please close all Microsoft Outlook programs firstly.

Step 1: Open the Run dialog box with pressing the Windows key and R key on the keyboard at the same time.

Step 2: In the Run dialog box, enter the outlook.exe /safe in the Open: box. See screen shot:

Step 3: Click the OK button.

Then Microsoft Outlook opens without loading any third-part add-ins.

Note: It’s easy to exit the safe mode and switch to normal view with restarting your Microsoft Outlook.

arrow blue right bubbleOpen Microsoft Outlook in offline mode

Do you know Microsoft Outlook allows users to disconnect from the mail server manually? If you do not want to receive any emails in some time, you can make Microsoft Outlook work offline with disconnecting Outlook from the mail server temporarily.

  1. In Outlook 2007, please click the File > Work Offline.
  2. In Outlook 2010 and 2013, go to the Preferences group on the Send/Receive tab, click to highlight the Work Offline button.

Note: If Microsoft Outlook is working offline, you will view the Working Offline (or Offline in Outlook 2007) on the Status Bar at the bottom of Microsoft Outlook. See screen shot:

Meanwhile, you will see the following Outlook icon at the Windows Taskbar if the Microsoft Outlook 2010 and 2013 is working offline.

Note: If you want to connect Microsoft Outlook to the mail server now, please click the Work Offline button on the Send/Receive tab again in Outlook 2010 and 2013, or click the File > Work Offline in Outlook 2007.


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  • To post as a guest, your comment is unpublished.
    DW · 2 years ago
    Step 1 doesn't work (Office 2010). Step 2 works fine if you are already running Office. Useless explanations.
  • To post as a guest, your comment is unpublished.
    MV · 2 years ago
    I have a workaround, for Office 2016 at least -

    "Disable" all network adapters (inc. wireless), and then open Outlook. Once Outlook is open, you can set it to "work offline" and re-enable the network adapters.
  • To post as a guest, your comment is unpublished.
    NJS · 3 years ago
    Did anyone have a solution to this ... very frustrating is you are on the plane and want to work offline and send/receive when you have internet on the ground.
  • To post as a guest, your comment is unpublished.
    R. M. · 3 years ago
    Problem is, I can't open Outlook unless I'm online. And I can't get online, but need to read past emails. These instructions don't help at all, because you have to have Outlook *already* open in order to *get* offline.
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    ahm · 4 years ago
    does not work for outlook 2013 :(