In the 2016 January Office Update, we added administrative support to disable Outlook 2010 from booting into safe mode. Therefore, an administrator can use a registry value to prevent Outlook from starting in safe mode after it crashes.
Important Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur.
Exit all Microsoft Office applications.
Start Registry Editor:
In Windows 10, go to Start, type regedit in the Search box, and then click regedit.exe in the search results.
In Windows 8 or Windows 8.1, move your mouse to the upper-right corner, click Search, type regedit in the search text box, and then click regedit.exe in the search results.
In Windows 7 or Windows Vista, click Start, type regedit in the Start Search box, and then click regedit.exe in the search results.
Locate and then select the following registry subkey: For Windows 32-bit running Outlook 32-bit or Windows 64-bit running Outlook 64-bit: