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Outlook Won't Open Windows 10 & Mac +1-800-570-3215

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Are you experiencing difficulty opening your Outlook application or accepting "Cannot start Microsoft Outlook? Cannot open the Outlook window" blunder messages in Windows 10 PC?

Undoubtedly, encountering 'Outlook won't open' issue when you're trying to completing a task can be frustrating. Be that as it may, getting Outlook back to work again isn't hard, but it expects you to have explicit information about how Outlook functions internally.

This article will outline conceivable causes resulting in 'Outlook won't open in Windows 10' issue. It will likewise highlight solutions to troubleshoot the issue.

What causes the 'Outlook not opening' issue, and its solutions?

NOTE: Before continuing further, try restarting your PC and check in the event that it helps in settling the issue. If not, continue with the solutions underneath:

Coming up next are a portion of the reasons for 'outlook won't open windows 10' issue, alongside the solutions:

NOTE: The solutions listed underneath apply to Outlook 2019, 2016, 2013 and 2010.

Cause 1 – Add-ins Conflict

At least one includes may interfere with Outlook and prevent it from starting. Try opening Outlook in protected mode. In the event that it opens, it's feasible that includes is preventing Outlook from starting ordinarily.

Solution – Disable include ins

Handicap the include ins and re-empower them individually to identify which one is causing the issue. Follow these steps to handicap include ins:

Step 1: Click Start, type 'outlook.exe/safe', and afterward press Enter

Step 2: Click File, and afterward click Options

Step 3: In the 'Outlook Options' discourse box, click Add-ins

Step 4: At the bottom of the Outlook Options window, select COM Add-ins in the Manage box

Step 5: Click Go

Step 6: In the COM Add-ins discourse box, uncheck all the selected checkboxes

Step 7: Click OK to spare changes

Presently try opening Outlook in ordinary mode, and confirm if the issue has been settled.

Cause 2 – Issue in Navigation Pane Settings

The Outlook Navigation Pane, likewise called the Folder Pane, makes it simple to switch between different perspectives like Mail, Calendar, Tasks, and other mail envelopes. You can customize the Navigation Pane to pick up flexibility with different perspectives and options. Be that as it may, customizations to the Outlook navigation sheet can likewise prevent Outlook from starting correctly.

Solution – Remove Customizations to Navigation Pane

Fix all the customizations by running the '/resetnavpane' order as follows:

Step 1: Click 'Windows' and 'R' keys together

Step 2: In the Run exchange box, click Outlook.exe/resetnavpane, and afterward click OK.

Cause 3 – Corrupt or Damaged PST File

A corrupt or harmed Outlook data document (.pst) may cause an 'Outlook not opening' issue.

Solution – Repair Outlook PST File

NOTE: This solution doesn't have any significant bearing to Microsoft Outlook 2013 and later forms, except for the accounts supported by IMAP.

Outlook's built-in fix utility-Inbox Repair Tool or SCANPST.exe, assists fix with corrupting or harmed PST record. Follow these steps to utilize the built-in fix tool:

Step 1: Navigate to the location of your Outlook PST record:

Outlook 2019: C:\Program Files (x86)\Microsoft Office\root\Office16

Outlook 2016: C:\Program Files (x86)\Microsoft Office\root\Office16

Outlook 2013: C:\Program Files (x86)\Microsoft Office\Office15

Outlook 2010: C:\Program Files (x86)\Microsoft Office\Office14

Step 2: Scroll down to locate SCANPST.EXE

Step 3: Double-click SCANPST.EXE

Step 4: Browse the PST record you want to filter

Step 5: Click Start to initiate the checking progress

Step 6: Click Repair to fix any mistakes (whenever found)

When the fix procedure is complete, start Outlook to determine if the issue is settled.

Limitation of Inbox Repair Tool

While the Inbox Repair Tool helps in fixing corrupt PST record, the built-in fix utility has certain limitations:

It typically neglects to fix a seriously corrupt PST record

Utilizing the tool can be time-devouring, as it should be run a few times to fix a corrupt PST record.

Utilize Stellar Repair for Outlook software to beat limitations of the Inbox Repair Tool and here's the secret:

It can fix a seriously corrupt PST document of virtually any size

The DIY software can help fix PST record in three straightforward steps:

Step 1: Select the corrupt PST document

Step 2: Repair PST document

Step 3: Preview and spare the fixed document


Conflicting include ins, issues in navigation sheet settings, and corrupt Outlook PST documents, etc. are a few reasons that may prevent your Outlook application from opening in Windows 10 PC.

To fix the issue, you can try debilitating the include ins, evacuate customizations to the navigation sheet and run Outlook built-in 'Inbox Repair Tool' to fix the PST record.

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