Suppose you can run Outlook in /safe and /safe:4 switch, but not in /safe:1 and /safe:3 switch, this means the problem is occurring in the customized toolbar. These switches can also help us in pinpointing the exact problem. Outlook /safe:4 – Starts Outlook without loading outcmd.dat (customized toolbars).įor some reason, /safe:2 switch is not included so typing it will give you ‘wrong switch’ error. Component Object Model (COM) add-ins are turned off. The Inbox Repair tool (scanpst.exe) works on both the Microsoft Outlook. More on starting Outlook in safe mode and disabling add-ins. You can start Outlook in SafeMode which will turn them all off (which is. Tip: If Windows cant find Outlook.exe /safe, try using the full path to Outlook (for example C:Program FilesMicrosoft OfficeOfficeXX, where XX is your version number). Right-click the Start button, and click Run. Outlook /safe:3 – Starts Outlook with Microsoft Exchange Client Extensions (ECE) turned off, but listed in the Add-In Manager. If Outlook wont open, try opening it in safe mode, which disables add-ins. Outlook /safe:1 – Starts Outlook with the Reading Pane off. Outlook /safe – Starts Outlook without Microsoft Exchange Client Extensions (ECE), the Reading Pane, or toolbar customizations. Once the Run dialog window is open, you can type any one of the four switches. So how would you start Outlook in safe mode? Go to Start Search, type Run, and hit Enter. In all cases you will need to start Outlook 2010 in safe mode. Apart from add-ins, there could be hundreds of other reasons why your Outlook is crashing. If your Outlook 2010 is crashing due to a culprit add-in, then the only possible way is to start it in safe mode and remove the add-in.

Outlook only works in safe mode