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.​



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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:

User-added image

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.


HOW TO: Ways to fix Outlook error ‘cannot open your default email folders’

Microsoft Outlook may be the most widely used email service around the globe, but users have come to accept the good with the very bad. Yes, Outlook offers an extensive and exclusive range of features as well as its friendly user experience. But there’s the flip side: User forums are filled with anger over errors that seem to have zero solutions. For this article, we will examine and hopefully resolve perhaps the most common Outlook error: “cannot open your default email folders.” This Outlook error mostly appears when you are trying to open your Outlook profile. It generally happens because of a corrupted OST file or the execution of Outlook in compatibility mode.

Why OST file corruption happens

OST files are the files that allow users to use Outlook while they are offline. It is actually a synchronized copied element of the accounts saved on your device that enables you to continue to use Outlook even when the program gets disconnected from MS Exchange Server.

These files can become corrupted because of various reasons. Some of the reasons are:

  • Deletion of any file or folder removed from Exchange folder.
  • Intrusion of any malware or virus.
  • Disruption in the file synchronization process due to sudden or abnormal shutdown failure.
  • Some internal discrepancies in Outlook causing abnormal Outlook termination.
  • Creation of some bad sectors in the hard drive where the OST file is stored.
  • Failure of any networking device that might disrupt the synchronizing process of the OST file.
  • Any changes in the internal structures of the OST file.
  • Installed plugins sometimes may damage Outlook performance, thus causing damage to the OST file.

Fixing OST file corruption

Here’s some ways to begin fixing the problem:

  1. Remove those profiles that are not being used from the address “Control Panel > Mail > Show profiles.”
  2. Create another copy of OST file.
  3. Even if the error doesn’t get resolved, create another new profile from while using Outlook Profile Helper or manually.

Outlook error caused by running in compatibility mode

Outlook Error
You might have witnessed these errors:

Cannot open your default email folders. Information store could not be opened,”


“Cannot start Microsoft Outlook. Cannot open the Outlook window. The server is not available. Contact your administrator if this condition persists.”


“Cannot display the folder. File access is denied. You do not have the permission required to access the file C:Usersusernamelocalsettingsapplication datamicrosoftoutlookoutlook.ost”

If you have enabled compatibility mode mistakenly, just disable it. If you haven’t, do not enable it for Outlook. Users typically enable it when they are required to run the troubleshoot compatibility wizard. Also, compatibility mode is not required for any version of Outlook on Vista or Windows 7 or any other Windows OS. This mode is also not needed for any application that is supported on any Windows OS or for recently released applications.

The user can switch off compatibility mode in a 64-bit operating system by following these easy steps:

  • Switch to the mentioned address “C:Program Files (x86)Microsoft OfficeOffice XXOutlook.exe”
  • Right-click on exe and then follow up by clicking on Properties then Compatibility tab.
  • Uncheck the checkbox called “Run this program in compatibility mode” box, thereafter click Apply and OK.

And in case, you are unable to place the Compatibility tab, follow the following steps:

  • Click on Startand search for Program Compatibility Troubleshooter.
  • Start Program Compatibility Troubleshooter; select Next option to proceed.
  • Select Outlook XX from the appeared list of programs. Following the steps of the Program Compatibility Troubleshooter.
  • Switch to the mentioned address “C:Program Files (x86)Microsoft OfficeOffice XXOutlook.exe”
  • Right-click on exe and then follow up by clicking on Properties then Compatibility tab.
  • Uncheck the checkbox called “Run this program in compatibility mode” box, thereafter click Apply and OK.

If this issue is experienced over an Exchange email account that is configured on your Outlook, you can diagnose the error by trying the following steps:

  1. If your program is executing along with a running Windows Server and/or over a firewall, then disable the firewall and then connect it with the server directly without any firewall.
  2. If this Outlook error gets resolved, then you will be required to reconfigure your firewall to allow Exchange to sync.
  3. And if the Outlook error still persists even after disabling the firewall, create a new mail profile from Outlook. You will also need to reconfigure your account.

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Outlook profile is not being saved, and is creating multiple OST files in the UPM user profile store

Outlook profile is not being saved and is creating multiple OST files in the UPM user profile store

Outlook OST is being synchronized. Every time user starts Outlook (inside of an ICA dsektop) Outlook prompts to configure the Outlook profile and creates a new OST inside of the user profile (c:users[username]App DataLocalMicrosoftOutlook) adding a index to the OST filename name (e.g. [username@[domain name]# (1), (2), (3), etc

This generates multiples OST copies in the user store AND in the local C:users[username] profile folder

Therefore end user is unable to leverage the configured Outlook OST that was brought from the user store from the previous session


DLP Network Discover scan common errors

I need a solution

Hi guys

Does anyone know if there is a list of common errors and reasons/resolutions, i’m trying to put together a simple guide for the first line support team and can only find/document issues as I come across them myself, not really ideal.

What I have so far are:

Access is denied – Permissions error, scan does not have the correct credentials to access the file, or additional access controls exist on the file, or AD access may have been interrupted, (try to manually access the files using the DLP scan user to see why the download failed) 

Failed to Read – failed to read errors are generally related to files being locked and not available to be copied/downloaded

Failed to Download – often related to permissions errors (try to manually access the files using the DLP scan user to see why the download failed) 

No such mount exists – this is related to file reader restarts, when the file reader does not unmount the drive fully during the restart and then the scan cannot mount the drive to continue scanning.  This is a bug I have seen in the forums.

Exception occurred during initialization. Ensure that Microsoft Outlook is configured properly (.pst files). – Outlook needs to be installed on the server doing the scan to be able to read .pst files

Anyone had any more?



DLP can’t detect emails classified with Titus software

I need a solution

Customer uses Titus classification software for file classification. Titus has been embedded in MS Office software, including MS Outlook. I have managed to form Symantec DLP policies to detecti classified MS Office files, either copied through network or sent through email, except for classified emails sent directly through MS Outlook. MS Outlook detects if classification appears in body of mail, in attached files, in mails sent through reply or forward, but it can not detect “clean” classified mails.



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 Restore Emails from OST file Outlook 2013?

MS Outlook 2013, like earlier Outlook versions, uses OST file to save a local replica of Exchange mailbox data. This file comes handy when user wishes to work on his mailbox even if Exchange isn’t available. But, it can’t be opened directly in Outlook if its parent account gets disconnected from Exchange. In such a case the OST file is called an ‘orphan’ file and extracting emails and other data from it can become a real pain.

Although Microsoft came up with the concept of using data files to save mailbox data locally in order to make backing up and archiving more convenient, OST and PST files have in some ways complicated mailbox management; and that holds especially true for OSTs. If you access an Exchange mailbox through Outlook, a local OST file is created to save a replica of mailbox data which the user can access and work with even if the mail server isn’t available. However, the basic nature of OST files makes managing mailbox data quite tricky for users.

The need to Restore mails from OST File

OST files have several shortcomings because of which, users often face the need to extract emails and other data stored within these files and save them in some other format:

  • OSTs cannot be transferred between different machines. If users need to access their mailbox data saved within OST files on another machine, it cannot be done directly through a simple copy-paste mechanism.
  • If the account that originally created an OST file gets deleted from the mail server, it cannot be opened directly from within Outlook.
  • In Outlook 2013 and 2016, data locally edited and saved within critical folders like Contacts, Calendars, Sent Items, etc. is not synced with the mail server and is thus not backed up there. In the event of damage to OST file, there’s no direct way to regain access to that local data since it doesn’t exist on the server.

Users who faced the need to extract OST file data because of any of the above-mentioned reasons make use of manual as well as automated ways to achieve it. For your reference, we’ve compiled a list of the most widely used and accepted techniques you can use to restore OST files if you’re sailing in the same boat.

Manual techniques to Restore OST files

In no specific order, these techniques can help you regain access to all your Exchange or other IMAP account data depending upon your exact problem scenario:

Scenario 1: If your Exchange account is intact but OST file gets corrupted

This is one of the most frequently encountered problems by Exchange users. OST files get damaged easily but if your Exchange profile is intact and you are in the habit of regularly syncing your local data with your server mailbox, regaining access to all your data should simply be a matter of manually creating a new OST file and downloading your mailbox data from the server again. Here are the steps:

  1. Quit all running instances of Outlook and open Control Panel
  2. Open the “Mail” option and in the ‘Mail Setup’ dialog box that opens, click on “Email Accounts”
  3. The next dialog that opens will display all your Outlook profiles / accounts. Here, click on the “Data Files” tab and choose the respective OST file from the list
  4. Now click on “Open File Location” to open the Windows Explorer window with the OST file’s location
  5. Close the ‘Account Settings’ and ‘Mail Setup’ windows
  6. In the Explorer window, create a copy (backup) of the OST file. Thereafter, right-click on it and click on “Delete”
  7. Start the Outlook application again to automatically create a new OST file for that account (doing so will download all the data from the Exchange server into the newly created OST file)

You should remember that if you’re using Outlook 2013 / 2016, only the data residing on the mail server will be downloaded into the new OST file. This will include your emails and the folders you have manually synced with the Exchange account. Any local data will not be downloaded since it doesn’t exist on the server. To get access to any such data you will need to convert the old OST to PST format and then open it directly within Outlook. You can either use the Outlook “Import & Export wizard” to convert OST to PST or take the help of reliable software Stellar OST to PST Converter to do so (skip to last section to discover how this product can help).

Scenario 2: If your Exchange account has been deleted or lost

If this happens, your “orphaned” OST file will most likely become useless since you won’t be able to open it directly unless you reconnect to Exchange and re-sync it. For this you will need a unique MAPI address to act as a bridge between Outlook and the Exchange server. However if this isn’t an option, the only way to access the data contained within the orphaned OST file is to convert it to PST format using Stellar OST to PST Converter. (Here you won’t have the option to use Outlook Import Export Wizard since you’ll need to open the OST file from within Outlook and without Exchange that won’t be possible).

Best Automated Solution to restore mails from OST file

If the manual technique doesn’t work or if you are dealing with an orphaned OST file, converting it to PST format is a task best handled by a professional product like Stellar OST to PST Converter. The advanced software is equipped with some very powerful algorithms that allow it to convert even the most severely damaged OST files to PST format files that can be used to access all mailbox contents including emails, attachments, contacts, calendars, notes, journals, etc. This software is your best bet if you wish to perform conversion of encrypted OST files or wish to extract only selected emails from within OST files and save them in MSG, EML, RTF, HTML, or PDF formats.

Final Thoughts…

So should a user completely shun the usage of OST files? Well obviously that isn’t an option since OST files are the Microsoft norm for saving Exchange data locally. What is needed is for users to stay aware of the techniques they can use to regain all their mailbox data if any disaster like virus infection or accidental deletion or severe corruption befalls their OST files. Converting OST files to PST format is the best way to salvage all the data stored within them and thus, having a product like Stellar OST to PST Converter handy goes a long way.


Connector Sharing

Connector sharing allows you to share files stored in on-premises Network Shares and SharePoint locations, as well as other file storage services like Dropbox or Box. When sharing on-prem files, a copy of the file is uploaded to the sender’s File Box.

This feature allows you to:

  • Share on-prem files securely via the Email with ShareFile or Get a Link options, without granting recipients access to your on-premises storage location.
  • Share files stored in other file storage services via the Personal Cloud Connectors feature.
  • Share files stored in a Connector with IRM protections. Click here for information on Protected Sharing. (This capability requires StorageZones Controller 4.2 or later)

System Requirements

  • StorageZones Controller 3.4 or later (if sharing on-prem files, not required for Personal Cloud Connector sharing)
  • Microsoft .NET 4.5.2 installed on the StorageZones Controller Server

Plan Requirements

  • This feature is available for Enterprise accounts

User Requirements

  • To share a file from a connector location, you must be an Employee user with the “Use Personal File Box” permission.
  • An Employee user’s ShareFile Username must match the user’s email address in Active Directory.
  • Users must be on the same Windows Active Directory domain as the StorageZones Controller.
  • Client users cannot utilize this feature.

Enable Connector Sharing

View Only Support

  • In order to share a file from your Connector as a View-Only message, you must have a View-Only enabled File Box.
  • Click here for more information on enabling View-Only Sharing.
  • This feature requires SZC v3.4.1 or later.

Share a File from Connectors (Web App 4.6 and later)

Navigate to the Network Share or SharePoint location where your file is stored. To share, right-click a file and choose Email with ShareFile or Get a Link.

This feature allows you to share on-premises files with the same customizable Notification and Security message options available for files stored on ShareFile servers. The Expiration Policy you set in Message Options will override that of the File Box. When sharing on-premises files, your file is copied to the File Box where it is subsequently downloaded by your recipient. Your recipient does not download files directly from your on-premises storage location. Due to this behavior, please allow your file time to upload to the File Box when using the Get a Link option.

Note Regarding File Version

Your file is copied to the File Box when it is sent. Due to this behavior, your recipient will receive the version of your file as it was at the time of the share. Updates to your file are not automatically uploaded to the File Box. If you update your file, you must compose another message to send the latest version of the file.

Supported Apps

Connector Sharing is supported on the following ShareFile apps:

  • ShareFile for Android v4.1 and later
  • ShareFile for Windows 10 v4.1 and later
  • ShareFile for iOS v4.0 and later
  • ShareFile Web App v4.6 and later
  • ShareFile Plugin for Microsoft Outlook v3.9 and later
  • ShareFile Desktop App v1.4 and later.

Note Regarding Restricted Zones

A user cannot use this feature if their File Box is located on a Restricted Zone.

Note regarding Users Provisioned by XenMobile

User accounts provisioned by a XenMobile server do not receive File Box access. ShareFile recommends provisioning users via the User Management Tool or manually enabling the “Use personal File Box” permission for each user.

Known Issues

  • If the user attempting to share from a CIFS Connector has an on-premise File Box, the share may fail. In the event of this error, ShareFile recommends using NTLM authentication.


  • Folders cannot be shared using this method


    Convert .msg file to .pst format

    I do not need a solution (just sharing information)

    Easily convert .msg file to .pst format with this best MSG to PST Converter software which gives the 100% guarantee of complete conversion. The software comes up with friendly user interface so that technical or non-technical users can also use this utility. 

    In this tool you get lots of advanced features:

    • Convert MSG file to PST format safely

    • Export MSG emails with attachments files

    • Unlimited MSG file migration in bulk

    • Store resultant PST file to the desired path

    • Migrate MSG to PST without corrupting the data

    • All windows operating system versions supportive

    • Move non-English text to PST always

    • Merge MSG file to a single PST file quickly