Troubleshooting Techniques Apply To Outlook Problem

Outlook will not open if you choose the Microsoft Outlook program from either the Start menu or a shortcut icon. The problem is dependent on the experience you have and the version you are using.

Outlook not opening for reasons

Outlook could be unable to open properly or at all due to a variety of issues. These are some of the most common reasons Outlook may not open correctly or at all.

• Add-ins that are problematic
• Files damaged
• An untrusted profile
• Navigation pane problems

How to Fix Outlook Not Opening in Windows

These troubleshooting steps can be used if outlook set folders cannot be opened on your Windows computer.

The automated Support tool and Recovery Assistant tool, which can be used on a Mac or PC, will diagnose and fix many problems, including Microsoft Outlook not starting.

1. Open Outlook in Safe Mode. Outlook will open in Safe Mode if it opens as expected.
2. Disable add-ins. The outlook may be affected by one or more add-ins. Try disabling all add-ins to see if the problem disappears.
3. Choose File > Options > Add ons.
4. Select Go from the Manage section.
5. Clear the boxes beside the add-ins that you wish to disable.
6. Select OK.
7. Repair Outlook. The outlook may have been damaged. To fix it, use the built-in Microsoft Office repair tool.
8. All Office applications must be closed.
9. Navigate to Start > Control Panel.
10. Select Category View.
11. Select Uninstall a program in the Programs section.
12. Right-click Microsoft Office to choose Change
13. Choose Online Repair or Repair. If a prompt for user account control appears, choose Yes.
14. After the process is completed, restart Outlook.
15. Repair your Outlook profile. Outlook profiles can be corrupted and cause many problems including Outlook, not opening.
16. Choose File > Account Settings >Account Settings.
17. Click on the Email tab.
18. To open the Repair Wizard, choose Repair (this option is unavailable for Outlook Exchange accounts).
19. Follow the prompts for the wizard to be completed and Outlook will restart.
20. Outlook data files can be repaired. Outlook won't open? Use the Inbox Repair tool.
21. Outlook for Exit.
22. Open the Inbox Repair Tool from Microsoft.
23. Navigate to your personal folders. Click Browse, and then click Start.
24. If the scan detects errors, choose Repair.
25. After the repair is completed, you can restart Outlook.
26. Reset the navigation panel. The outlook may not open correctly if there is a problem with its navigation pane. The issue might be resolved by resetting the navigation panel.
27. Outlook for Exit.
28. Click Start > Run, or use Windows Key+R.
29. Paste outlook.exe/resetnavpane into a text box and click OK.
30. Open Outlook. The navigation pane will then be reset.

How to Fix Outlook Not Opening on Mac

These troubleshooting tips are applicable to Outlook 2016 for Mac as well as Outlook 2011 for Mac.

1. Keep checking for new updates. An update may fix the problem of Outlook not opening. Even if Outlook is not opening, check for and install any updates.
2. Select Help > Check for updates
3. Select Update to download all updates available.
4. Rebuild your Outlook database. The outlook may not open on a Mac if it is corrupted. You can use the Microsoft utility to fix this problem.
5. Rebuilding the database will delete any information not synced to your Microsoft Exchange account. Before you rebuild the database, back up all Outlook data that is stored on your computer.
6. All Office applications must be closed.
7. To open the Microsoft Database Utility, press the Option key.
8. Choose the identity of the database that you wish to rebuild.
9. Rebuild.
10. Once the process is completed, restart Outlook.

How do I fix the "Outlook Information Store Could Not Be Opened?" error?

1. Here are some ways to fix the Outlook information store that cannot be opened in error. These tips are easy to follow and can be used to fix your Outlook error.

1 Start Outlook in Safe Mode

1. You can start Outlook in safe mode as the first option. You don't know how? These steps will help you get there:
2. Press the keys "Win", + "R", on your keyboard.
3. In the box marked "Open", type "Outlook/safe"
4. Select "OK".

2 Uncheck the Outlook Compatibility Mode option

1. You can also uncheck "compatibility mode". This will allow Outlook to access all features, including information storage. The following steps will allow you to deactivate compatibility mode in Outlook:
2. Open your Outlook folder by going to File Explorer
3. Right-click Outlook.exe and select "Properties".
4. Click on the compatibility icon and uncheck the box next to "Run this application in compatibility mode".
5. Select "Apply" then click "OK".

3 Fix the Navigation Pane

1. Outlook's navigation pane can be corrupted and cause many problems, including the inability to open the information shop. If the problem is causing the Outlook error, it's reasonable to repair the navigation pane file. Follow these steps:
2. You can either select the start menu from Windows, or you can press the keys "Windows + R" to take you there.
3. In the text box "Run", type in 'outlook.exe/resetnavpane'. Click "OK" to enter this.

4 Disable Lync from your System Startup

1. Lync is an excellent instant-messaging platform that corporate organizations owe a lot to. Lync can be confusing and cause problems with Outlook's information store opening. Lync must be removed from the system startup process. Follow these steps to do this:
2. Right-click the "Taskbar", and then click it. Select "Task Manager".
3. Next, click on the Start-up button
4. Click on "Lync", and select "Disable".
5. You can now reboot your Windows system or restart it and then open Outlook again.

Five Clean Boot Windows

1. Windows starts afresh when you clean boot it. It is important to stop conflicting programs from starting at the same moment. Clean booting Windows can resolve this problem. These steps will be very helpful to you:
2. Click "OK" in the "Run” box. Type "MSConfig" into the box.
3. Click "General", then click "Selective Startup", and then select "Load service services" or "Use boots configuration". Click to uncheck the box next to the "Load startup" option.