Reasons Why Outlook Fails To Start

Invalid XML Error

Fix Invalid XML Error

One of the major issues that the Microsoft Outlook program exhibits is the ‘Unable to start Outlook’ error. Every Outlook user might have come across this error at least once during their term of use. You get the error when you try to launch the program by double clicking on its icon found in the desktop. Usually if the program is having issues, Outlook will not launch, you will be able to see an hourglass symbol on the screen and after a while you will get the error message saying ‘Cannot start Microsoft Office Outlook’ on the screen.

Often the reason for this error is the invalid XML file present in the Outlook folders due to some corruption. Microsoft in their Outlook support website listed the main cause of this error as the corruption of the Navigation Pane settings file in Outlook. If the file named profilename.xml, where ‘profilename’ is the name of your Outlook profile, is corrupted, you will get an error. You can find whether the file is corrupted or not by checking the size of the file. If the size is shown as 0KB, then the file is obviously corrupted and you will receive error.

Even though no one knows the exact reason for the occurrence of this error, it is widely found in all versions of Microsoft Outlook from Outlook 2003 to the latest Outlook 2013. Another reason for the presence of the issues with Outlook email manager program is running the program in compatibility mode. Another common reason for the issues with Outlook email client is the corruption of Outlook data file, which can be the result of a faulty reinstallation or virus attacks.

Troubleshoot Invalid XML

Troubleshoot Invalid XML Errors

Whatever the reason may be, the final outcome is all same, you get an Outlook program that fails to launch and perform. Sometimes, the program will launch, but when you try to get new emails, the program will freeze or stop responding to the commands. The error messages that most common versions of Outlook programs display on the screen are given below.

Outlook 2010 program will show the message ‘Microsoft Outlook has encountered a problem and needs to close. We are sorry for the inconvenience’, Outlook 2007 displays the message ‘Cannot open your default e-mail folders. The information store could not be opened’, while Outlook 2003 displays ‘Cannot start Microsoft Office Outlook. Unable to open the Outlook window’ or ‘Invalid XML, the view cannot be loaded.’

If you are constantly facing Outlook startup issues, you can contact our tech support desk to get apt assistance and fix the issues at the earliest.

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How To Fix Outlook PST File Errors

Invalid XML

Fix Invalid XML Error

If you are using Outlook email client to send and receive emails, there might have been a few instances when you had encountered errors with the program. Two of the common errors that many people encounter while running their Outlook program are the Errors have been detected in the file <path to pst-file> and invalid XML. These errors can come up when the PST file of the Outlook program becomes corrupted. Keep in mind that the PST file is the most important file associated with the program as it is the storage space of your contacts, emails, calendar entries etc.

So, what are the consequences of PST file corruption? When the PST file becomes corrupted, you will no longer be able to access your mailbox. This means, until you fix this issue, you cannot access or view your emails, calendar entries or contacts. However, if you have already created a backup of the Outlook PST file, you can fix this issue. This will help you to retrieve the data and view the inbox.

Now, if you do not have the backup of the PST file, you may try to fix it using the Inbox repair tool that comes with the program. The inbox repair tool can be found in the computer with the name scanpst.exe. This tool is designed to diagnose the errors with the PST file and fix it accordingly. When the tool finds errors with the file during the scan, it restores the data.

Email Client

Resolution For Invalid XML

Scanpst.exe file can be found in the folder ‘C:\program files\Microsoft Office\Office12\‘. In order to run this application, double-click it. When the tool comes up, it asks you to open the PST file in it. You need to browse to the location of the file and choose it. Choose the button ‘Start’ in the program and this will run the scan of the PST file. Once the scan finishes, it records any errors associated with it and fixes it.

Sometimes, when you try to repair the file, you may receive an error message ‘The file <path to pst-file> is not an Outlook data file (.pst)’. This error shows that the repair process was not a success. In such cases, you will have to use any of the third party tools like Outlook PST recovery software to fix this issue.

For further assistance on Outlook issues like ‘invalid xml errors’, you may contact our technical support team.

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Fixing Error 0x800ccc0b In Outlook Express

Invalid XML

Fix Invalid XML Error

Outlook Express is an email manager program that many use for managing their emails. Outlook Express is essentially a cut down version of the Microsoft Outlook email client. Like the full version, the cut down version is also susceptible to errors. One of the most commonly found errors is the 0x800CCC0B error that you receive when you try to send or receive new emails. The error mainly occurs when you try to send a third party email from the Outlook Express program. You may be surprised to see that the POP account works fine, the reason for this is that the SMTP 0x800CCC0B error occurs only while sending emails.

Presence of invalid XML is one of the reasons that lead to the appearance of the SMTP 0x800CCC0B error. Here we discuss some simple instructions for fixing the error.


  • Open the Outlook Express email manager program by double clicking on its icon found in the desktop. However if you are not able to find the desktop shortcut icon, click on the Start menu and then on the All Programs tab for viewing all the programs installed in the system. Now click on the Outlook Express tab found in the list for launching the program.
  • When the program window appears on the screen, click on the Tools menu for opening the drop down menu and click on the option labeled as Accounts found under it.
  • Now the program will show you all the accounts that are configured with the Outlook Express program. Select the account that throws the invalid XML error when you try to send or receive email from the list of accounts displayed on the screen.
    Outlook Express program

    Fixing XML Error

    Click on the Properties tab found in the window for viewing the account properties.

  • Now navigate to the Servers tab shown on the screen and put a check mark in the check box found next to the option labeled as My server requires authentication found under the Outgoing Mail Server tab.
  • Click on the OK button for saving the changes made to the email manager program.
  • Close the program and re-launch it, now click on the Send/Recv button found in the application window. If everything goes well, you will be able to send and receive emails from the Outlook Express program.

If you are still getting the error on the screen even after following the steps provided above, feel free to contact the Outlook help and support team.

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Recovering Unsent Emails In Outlook

Outlook Repair

Microsoft Outlook Repair

When you close Outlook with any unsent messages, they are saved in drafts or outbox folders. This depends on the email client you use. Nevertheless, when you delete them they are pushed into the Deleted Items folder. It is also safe to take a backup of all the information in Outlook so that you can restore Outlook to its normal working condition when there is corruption or any other issues that would require Outlook Repair.

When you take a backup, you will be able to save all the recent emails and other information in Outlook. However, if you are looking for an unsent email after taking a backup, then there is a lesser chance to find the same. If you have deleted an unsent email by mistake, there are chances of it remaining in the computer hard drive.


  • Launch the application and open the Deleted items folder to check if there are any unsent emails still in this folder. If you find any, then just move it to the inbox or any other folder in order to recover the same. If this is not possible, then try using the built-in program called Dumpster Recovery program.

    Unsent Message

    Outlook Inbox Repair

  • To find out if your email client has a file recovery program, click on the Tools menu. In the Outlook application, click on the option labeled Recover Deleted Items. If you want help, you can search Outlook with the Help option to find out if your email client has a recovery option with a different name.
  • Skim through the list of deleted items displayed. If you find the required one, make a Selection of the unsent message that you intend to recover, and click on the Recover option located above the list. In case you do not find your email file in the list, you will have to make use of Commercial Recovery Software.

Follow these Outlook repair instructions to take a backup. This will be of great help when you have lost emails. You cannot completely rely on the utility used for recovery. All these utilities have certain limitations, which prevent them from being cent percent effective.

There are many utilities available to recover from various issues with Outlook. One of the most common problems in Outlook is the PST file corruption. To repair Outlook, there are inbox recovery utilities to fix the corrupt PST files. Scanpst.exe also helps in recovering Outlook from any corruption or damage to ensure that it functions properly in future.

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Steps Involved In Disabling Add-Ins In Outlook


                   Speeding Up Outlook

Outlook is an extremely useful email client as well as a personal information manager program. Outlook has several different features that none of its rival programs have been able to incorporate. They have been able to hold on to the popularity and fame because each advanced version of Outlook managed to bring in new features that increased the productivity of its users.

However, the most frequent problem that most Outlook users report is the slow performance of Outlook over time. At times, the reason is predictable. If you have a lot of emails in your inbox, it will take a long time for the program to load and display every one of your messages. Enabling the Auto archive feature to archive old emails would solve the issue. At times, the reason would be due to the accumulation of duplicated emails over time. If this is the reason, you would have to regularly delete the duplicated messages as well.

One of the most commonly assumed reason for slowing down of Outlook is errors in the registry entry. To troubleshoot this error, you would need registry cleaner tools and various other programs to rectify all the issues with your Outlook problems. Before you do this, observe your Outlook program. Are there many plug-ins installed in your Outlook? Sometimes, errors in Outlook plug-ins cause the entire program to act erratically. In such cases, it is better to check if the Outlook problems disappear once you disable the add-ons.


              Slow Outlook Application

Here’s how you can disable Outlook Add-ons:

  • Open Outlook program from the Start menu and then wait for it to load.
  • Once the program is completely loaded, click on the Tools menu and select Trust Center inside this menu.
  • Click on Add-ins inside the panes situated in the left side on the bottom of the window. Once you click on this option, you will be able to manage your COM add-ins.
  • Inside this window, you will be able to view all the add-ins that are available in your Outlook application. Select and disable each and every add-in that you are not using. Restart Outlook to see if this helped the issue.
  • If this has not solved the Outlook problems, go back to the same menu and disable each add-in that is still enabled, one by one. One of the faulty add-ins might be causing this problem.

If this information was not useful, it is time to call in the experts. Contact our technical support team to get a detailed instruction to set to fix up your Outlook program as soon as possible.

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» Fixing Issues With A Corrupted Outlook Express 6 Program
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