Corrupt PST file
Incompatible or faulty add-ins
Damaged Outlook profile
Outdated Outlook version
Damaged or missing Windows system files
Conflict with other program or application
Press Windows Key + R, type Outlook /safe, and click ‘OK’ or press Enter to open Outlook in safe mode.
Select your Outlook profile when prompted and click OK.
Start Outlook 2016 in Safe Mode and Disable Add-Ins.
Check for Dialog Boxes.
Firewall Settings.
Install Latest Windows and Office Updates.
Repair Office Programs Manually.
Run Resetnavpane Command.
Disable Compatibility Mode.
Execute Sfc Scannow Command.
Why is outlook not opening in Windows 10?
Try these magic solutions] Solution [Part 1: Start Outlook in safe mode and disable add-ins.
Solution 2 – Create a new profile
Solution 3 – Use SCANPST.To exe to repair Outlook data file
Solution 4: Use the /Resetnavpane command 5:
Solution Delete the Outlook application data folder.
Solution 6 – Check if you are authorized to access the PST or OST file
Running Solution 7: SFC Scan.
More items
Why is my Microsoft Outlook not opening?
If you select the Microsoft Outlook program in the launch collage or link the icon, but Outlook does not open, the correct solution will be determined based on your experience and the version of Microsoft Outlook you may be using. Some issues can cause Outlook to open incorrectly or incompletely. Here are some of the most common: Culprits Problematic add-ons or extensions.
When you try to start an Office 2016 app such as Excel 2016 or Word 2016 it fails and you get error code 0xC0000142?
When you try to start any Office 2016 application like Excel 2016 or Word 2016 it fails and you get error code 0xC0000142 as a result. This issue is fixed in Channel Monthly (Build 1803 9126.2116) or later. To always get the latest update, open any Office application and choose File > > Account Update Options > Update Now.
How do you fix Outlook 2016 error Cannot start Microsoft Outlook Cannot open the Outlook window?
Locate the Outlook.exe file on your laptop. Right-click the Outlook.exe file, select Properties, and then click the Compatibility tab.
How do I disable add-ins in Outlook 2016 without opening Outlook?
If you don’t choose to use the add-in in Outlook 2013 or Outlook 2016 on behalf of Windows, you can disable it, which will prevent it from appearing in your notifications. In Outlook, click File > Manage Add-ons. Tip: Outlook on the web opens. In the Manage Add-ons section, in the Enabled column, uncheck the box for the add-on you want to disable.
How do I disable add ins in Outlook 2016 without opening Outlook?
Choose File > Options. Select “Add-ons” on the left panel. In the Manage box at the bottom of the window, select COM Add-ins, then Go. To remove add-ons, uncheck any add-ons you don’t want to download.

I’m a writer for uscfr.com. In my opinion, technology should make our lives easier, not more complicated. That’s why I enjoy breaking down complex topics and explaining them in a way that everyone can understand. In my free time, I can be found tinkering with new devices or coding up new apps.