Error – “Cannot start Microsoft Outlook. Cannot open the Outlook Window”

Disabled Windows Search Indexing for any outlook items.


1. To resolve this issue, add the following key to the Registry to prevent indexing of any Microsoft Outlook items


Data type: REG_DWORD

Key: SoftwareMicrosoftWindowswindows SearchPreferences

Value name: PreventIndexingOutlook

Value data in Hex: 0x00000001


Restart the Outlook client and Windows Desktop Search Service.


While Outlook is still running, open Control Panel, find Index Options and open it. Then click Modify button and uncheck Microsoft Outlook from the list and click OK.



Enable the below GPO to Prevent Indexing Microsoft Office Outlook.

Computer ConfigurationAdministrative TemplatesWindows ComponentsSearchPrevent Indexing Microsoft Office Outlook.​



SEP14 Delayed Start

I need a solution

Started experiencing a problem with multiple users being warned by outlook “A program is trying to access e-mail address information stored in Outlook.” when it auto starts at login.

It seems it takes a good 30 seconds for the Trust Center to realise that the Antivirus status is valid.

I’ve seen this on a handful of win 7 (64 bit) users and now win 10 users.

Not sure where to start looking, could it be the SEP client is being delayed on startup, or maybe its taking a while to checkin to the server? 



Avamar: Unable to open ItemPoint on Exchange 2013 with Outlook 2007 32 bits — Error: The MAPI subsystem could not be initialized.

Article Number: 499291 Article Version: 3 Article Type: Break Fix

Avamar Client for Windows

Opening ItemPoint on a newly configured Avamar client, returns a windows error popup message:

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This is an Exchange 2013 with Outlook 2007 32 bits installed.

According to Kroll support, this issue is caused by an incompatibility between Exchange 2013 and the current Outlook version installed, in this case, Outlook 32 bits.

In order to resolve this issue:

1) Apply all available service packs to the current installed version of Outlook.

NOTE: ItemPoint 8.1 doesn´t support Outlook 2007.


2) Install another version of Outlook, higher than the current one.

In this particular environment, installing Outlook 2010 32 bits was the solution to taken to get ItemPoint working as expected.


Outlook crashing after its latest September update

I need a solution

We are using Office 365 (Monthly channel, 2016). After the recent September updates to Office, Outlook started crashing for some users when trying to sort emails by From, or other columns. If we uninstall Symantec Endpoint Protection, it stops crashing. On some PCs it even shows that Symantec’s add-in has beed disabled because it caused a crash, although Outlook still crashes in such case.

We are still using 14.0.1 – (14.0 RU1 MP2) – 14.0.3929.1200 and were only planning to start testing 14.2. I think 14.2 still came before September 5, when new updates for Office came out. But maybe it’s a known fixed issue? I have only filed a request with Microsoft so far. They are investigating.

Happens both on Windows 7 and Windows 10.



FIX: Outlook error when sharing calendar in Windows 10

Do you get the Outlook error when sharing calendar? If you have Office 365 or any other Microsoft Exchange email service, Outlook can be used on the web to share your calendar with others in and outside of your organization.

Depending on the permissions given, others can only view your calendar, edit, or act as your delegate for meeting requests.

The Outlook error when sharing calendar can happen due to configuration or permission issues. Some users have reported that removing current permissions besides the Default and Anonymous resolves the issue.

However, if the error persists, repair Office from Control Panel, and if it fails, download and run the Microsoft Office Configuration Analyzer tool 2.2, which analyzes Office programs for known configurations that can cause issues.

If you don’t have the option to share your calendar (maybe it is grayed out), it can also be because your network admin or IT support set a policy preventing calendar sharing among people in the office.

Fortunately, there are ways to fix the Outlook error when sharing calendar as listed below.

Outlook won’t share calendar, how do I fix that?

  1. General fixes
  2. Check Permission settings
  3. Check for Duplicate entries

1. General fixes

  • Update Office suite to the latest version by going to Outlook>FILE>Office Account>Update Options>Update Now
  • Do an online repair for the Office programs
  • Also, if you are using an Office 365 account in your Outlook 2016, you can try sharing the calendar in Outlook Web App (OWA).
  • Launch the Run command and paste exe /safe in the open box to start Outlook in Safe Mode
  • Uncheck Cash mode in Outlook
  • Download Microsoft Support and Recovery Assistant for Office 365 and see if it helps

— RELATED: Fix Outlook error ‘Too many recipients’ on Windows 10

2. Check Permission settings

  • Open Outlook and go to Calendar view
  • Right click the calendar you’re trying to share
  • Click Properties
  • Go to Permissions tab and remove users who are no longer at the office or who cannot access the calendar
  • Click Apply and close the window then try to share your calendar again

3. Check for Duplicate entries

The Outlook error when sharing calendar may be related to a duplicate entry in the Permission list of your calendar. To check for this, do the following:

  • Right click user’s calendar
  • Select Properties
  • Click Permissions tab
  • Go through the users’ list and check for a duplicate entry
  • If you find, remove it and restart Outlook again
  • Share your calendar
  • Remove all entries and return them again
  • Right click the calendar you want to share
  • Select Properties
  • Make a note of the entries and then remove all entries in the calendar permission list
  • Add them back

Were you able to resolve the Outlook error when sharing calendar? Let us know in the comments section below.



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Endpoint Agent Monitoring for Outlook 2013

I need a solution

Hi All,

We are using Symantec DLP 15 in a test environment. There are 2 policies being tested on endpoints. The channels being tested are as can be seen in the image Removable Media, Copy, Paste, Outlook. All channels except for Outlook are being successfully monitored and policy being applied by DLP Endpoint Agent. Only in case of Outlook (Version 2013) when we upload senstive attachments or write sensitive content in body of the email there is no incident being generated i.e Endpoint Agent does not monitor it.

Then for testing, we changed the setting of Microsoft Outlook in Application Monitoring to following,

So that content being read in Outlook should be monitored however after testing it there is still no monitoring being done by the Endpoint Agent.

Then lastly, we changed the setting of Microsoft Outlook in Application Monitoring to following,

Now, incase of attachments of sensitive information the Endpoint Agent monitors and applies the policy. However still when we write the sensitive content in the body of the subject it is not monitored and email is sent.

What we need to understand is when to use,

a) Only Enable Outlook Checkbox in Agent Configuration

b) Enable Read in Application File Access, Application Monitoring

c) Enable Write in Application File Access, Applicaition Monitoring

Thanks !



How to get the Add-In for Outlook – Web

You should go through the Outlook app to get to the store / add-ins page instead of going to the store outside of the app. This is what Microsoft also recommends:

In Outlook on the Web, access the Manage Integrations / Add-Ins menu in Settings. (Note: This may be an Apps button in your New Mail menu.)

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Search for ShareFile and you will find our add-in. From the ShareFile add-in page, switch the toggle from Off to On.

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Now you can start using ShareFile in Outlook on the Web! Simply open a new message in Outlook and you’ll see the ShareFile button in your new message window. Click on that button to start sharing and requesting files.

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For more information on using the ShareFile for Outlook Add-in, as well as the latest updates, please refer to our Knowledge article at


Solved : Errors have been detected in the file Outlook.pst

You can never really predict when something will go wrong with Outlook. The extremely user-friendly and efficient email client can easily get bogged down due to several reasons causing a complete halt to the mail send-receive operation. More often than not, the cause behind an ill-functioning Outlook application is a damaged PST file. Here in this article we will explain about the methods to solve the “error detected in Outlook PST file”.

As inconvenient as encountering an error like this is, what’s more unpleasant is the effect of such a happening. From a failed send-receive operation to an Outlook crash to complete mailbox inaccessibility, you could end up facing any depending upon how bad the situation is. And by “situation” here we mean damage in your Outlook PST file.

So why do PST files become corrupted?

There could be many reasons triggering PST file corruption:

  • Bad sectors on the hard drive on which the PST file is saved
  • Abrupt termination of Outlook
  • Virus infection in the file
  • Overload of data within a single PST
  • Botched system recovery operation

A quick look at the above causes is enough to understand that many of them are unpreventable. While a simple anti-virus update or procurement of a UPS may keep two triggers at bay, other unwanted situations might arise without any apparent doing of your own. That was probably why Microsoft decided to ship a default PST repair utility with its MS Office application suite.

ScanPST.exe and its usage

The Inbox Repair Utility or ScanPST.exe that Microsoft provides is a handy way to detect and fix minor damages and corruptions within Outlook PST files. This application is the simplest way to perform a basic recovery operation on PST files in order to revive a failing Outlook. Here’s how you can use this utility to fix a damaged PST:

1. Navigate to C:Program FilesMicrosoft OfficeOffice 12 and double-click on the file ScanPST.exe

2. Click on ‘Browse’ and select the PST file which is to be repaired

3. Click on ‘Start’ to instruct the tool to scan the file for damages. If any discrepancies are found, the tool will display a proper message indicating as much as well as a prompt to repair the file

4. Select the option to ‘Make a backup of scanned file before repairing’ and then click on ‘Repair’ button to fix the problems within the PST

5. When the operation completes, re-launch Outlook and verify if everything works as expected.

While this approach is extremely simple and of course free of cost, it suffers from a few limitations:

  • The tool needs you to know exactly where the damaged PST file is located. Some users might not be aware of it
  • It is a time-consuming process
  • ScanPST.exe cannot fix severe corruptions within PST files

A better approach

In order to overcome the limitations of ScanPST.exe and to make the repair operation much more efficient and easy, the usage of an advanced and sophisticated Outlook PST repair tool is recommended. Such a tool can not only simplify the process, it can ensure that your Outlook PST is rid of all problems in the most non-destructive way without causing any unintentional harm to the data contained within.

Among the wide variety of PST repair applications available online, the most reliable and proficient one is Stellar Phoenix Outlook PST Repair. This software is a competent and reliable way to rid a severely damaged PST file of errors and make Outlook function smoothly. The tool is backed by some very intricate algorithms that enable it to quickly scan corrupt PST files and repair them to restore all mailbox contents to a new blank PST in their original format. Additionally, the software comes with a ton of impressive features which make it a must-have for all Outlook users.


There can be multiple reasons for Outlook data file (PST) corruption which lead to Outlook crashing with the “error detected in Outlook PST file” message. While some underlying problems can be fixed by just upgrading your Outlook or antivirus version, others might need you to repair the damaged PST file with ScanPST.exe. But if that doesn’t work, without any hesitation you should entrust the job of accurately and safely repairing the file to Stellar Phoenix Outlook PST Repair software.


Download Free ScanPST.exe Alternative for Outlook PST File


7022715: Outlook prompts users that the Filr plugin has not been enabled

This document (7022715) is provided subject to the disclaimer at the end of this document.


Micro Focus Filr 3.3

Micro Focus Filr Plugin for MS Office and Outlook


Starting with Filr 3.2, Filr provides a plugin for integrating Filr with Microsoft Office and Outlook (as described in the Filr Administration Guide). The plugin is installed using a single FilrPluginforOfficeandOutlook.msi installer for both Microsoft Office and Outlook applications and requires the Filr administrator to enable the plugin for each (a) MS Outlook and (b) MS Office individually before users can begin to use it.

If the Filr administrator is unable to enable the Outlook plugin (see additional information for more details) but has already enabled the MS Office plugin, end users using MS Outlook will see the following warning pop-up every time they start MS Outlook:

The administrator has not enabled the Filr Plugin for Office and Outlook.

The only way to get rid of this warning during MS Outlook startup is to either enable the plugin for MS Outlook (which may not even be possible depending on the type of Filr license) or uninstall the plugin altogether.


A fix for this issue is available in the Filr 3.3.3 Update. With the fix in place, the warning will only appear when user attempts to login from the Filr settings tab.

Users must download the updated Filr Plugin for MS Office and Outlook and install with the option to Update when presented in the installation wizard.

Additional Information

The plugin for Microsoft Office is only available to Filr customers with the Advanced Edition license. Therefore, any customer with a Standard Edition license that enables the Plugin for MS Office results in seeing the warning if using MS Outlook.

Additionally, Filr customers with the Advanced Edition license, that only wish to use the Plugin for MS Office (but not MS Outlook) result in seeing the warning if using MS Outlook.


This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented “AS IS” WITHOUT WARRANTY OF ANY KIND.