Learn How To Resolve Cannot Start Microsoft Outlook Error

In some situation, Outlook users encounter an error message, which indicates that Cannot Start Microsoft Outlook and hence, users cannot use this email application.

1. Use of resetvpane Command

The first approach is to start Outlook with help of ‘/resetvpane’ command. Go through the following steps to learn the way to use this command:

(a) Close all the applications/processes related to Outlook from Task Manager window of your machine

(b) Open the Run window on your system by pressing Ctrl+R from keyboard


(c) Now write the command given in the following screen-shot


(d) After correctly writing the command in run window, click on OK button


run windows to fix cannot start microsoft outlook error

2. Repair Outlook Data Files

Since we know that Outlook creates a storage files i.e.,PST and OST file that stores entire Outlook data within it. Sometimes if this file gets corrupted due to some reasons like virus in machine, abnormal closing of Outlook, etc., then this causes a situation in which Outlook application is unable to start. Therefore, there exist a need to repair such damaged or corrupted files that may help in fixing the error.

To repair Outlook storage file, there exist following two methods:

scanpst.exe Inbuilt Utility: If the files are less damaged, then it is convenient to use this utility that will scan the header part of file and repair the file.

scanpst.exe Inbuilt Utility: If the files are less damaged, then it is convenient to use this utility that will scan the header part of file and repair the file.

Third-party Application: If the file is majorly corrupted, then above technique will not be suitable for such damaged file. Therefore, it is recommended to use a utility named as Restore Microsoft Outlook OST File Tool that supports both highly as well as less corrupted OST files without causing any errors.

3. Open MS Outlook in Safe Mode

For fixing the Outlook error, the another way is to fix this problem is by opening Outlook in safe mode. This mode will allow users to disable the reading pane. The process to open Outlook in safe mode differs for different operating system.

TIP: To check whether the Outlook is working in safe mode or not you will have to see a label at screen top that should be somewhat similar to following screen-shot

However, if Outlook doesn’t start in safe mode, then surely the problem is with one of add-ins. Therefore, to start Outlook in safe mode you will have to disable add-ins before starting Outlook.

4. Check Whether Outlook is Working in Compatibility Mode or Not

Sometimes'Cannot Start Microsoft Outlook ,Cannot open the Outlook Window’ Error occurs because Outlook is working in compatibility mode. This mode is discovered to allow an application to work on an older operating system. You need to disable this mode.