5 Tips to Fix Cannot Start Microsoft Outlook Invalid XML Error

 If you see “cannot open the Outlook window invalid XML” error pop-up on your computer screen, it might be a matter of concern. This article shows you the fixes related to the issue.


Invalid XML Error in Outlook 2010/ 2013/ 2016 – Cause And Symptoms

Before we move on to the steps, we would like you to go into a little detail about the issue. Let us make you know the cause behind the problem and how will you get to know it.

Causes of Invalid XML Error:

  • The actual reason due to which the "cannot start Microsoft Outlook Invalid XML" error can appear is the Navigation pane settings. If the Outlook XML files in the settings got damaged or corrupted due to any reason, you may get this problem.
  • When Outlook is set in compatibility mode, problems like these are likely to occur easily.
  • Moreover, using the Outlook profile in previous versions can (rarely) also be responsible for the issue.

Symptoms of Invalid XML Error:

You can easily find the error on your system as there is only one symptom enough to make you realize that you are stuck with the problem. When you launch Outlook, you will find it getting frozen for a bit.

After this, a pop-up will come up where it will show the message "Cannot start Microsoft outlook. Cannot open the Outlook window. Invalid XML, the view cannot be loaded".

Note: To ensure that the XML file corruption is the only reason, ensure that the size of the file is 0.

Five Tips to Fix Cannot Start Microsoft Outlook Invalid XML Error

Now that you know what can make this error happen, let us try to fix these on our own. Here are the five methods mentioned one by one. Check out which helps you.

1 Use Inbox Repair tool

One of the promising ways to resolve cannot open Outlook invalid XML issues can be Inbox Repair Tool. This tool is designed by Microsoft to help people repairing their PST files as well as any problems related to it. If the PST files get damaged, you may get this problem and hence as the first method, we would like to suggest you going with this. This is how you can repair it when stuck with cannot start Outlook invalid XML problem.

Step 1: On your PC, begin with launching Windows Explorer. And for this, you got to push the key combination of "Windows" and "E" on your keyboard.

Step 2: When you see it opening, simply navigate to the following path:
C:\Program Files\Microsoft Office\{Office version}

If you own a PC that is having 64-bit Windows and 32-bit Office is installed, go along with the following path:
C:\Program Files x86\Microsoft Office\{Office version}

Step 3: Once done, make sure to look for the "Scanpst.exe" and when you discover it, click twice on it to move further. Alternatively, go to the Start button and press it. On the search box, type "Scanpst.exe".

search for scanpst.exe

Step 4: Now, ensure to click on the "Browse" button so that you can select the default Outlook.pst file.

Step 5: Once done with this, further the process by clicking on the "Start" button. The file will be scanned now. You might be shown a message in the dialog box of the Microsoft Outlook Inbox Repair Tool if the file is having errors. The message would be, "Errors were found in this file. To repair these errors, click Repair."

repair outlook pst

Step 6: Do as the message says, i.e. click "Repair" and the PST file will begin to repair. Wait until it gets completed. Once done, launch the Outlook application and see if the problem is gone with the PST file or not.

2 Recover the Navigation Pane Configuration file

Apart from PST files getting corrupted, if there are the Navigation pane settings that have gone through the same trouble, probably you cannot start Microsoft Outlook and an invalid XML error is likely to appear. Thus, with this method, we would like you to see the navigation pane settings if the above method didn't work for you. If these are corrupted, here is how you can do some configurations.

Step 1: Launch the Run dialog box. You can press the "Windows" and "R" keys to do this. When it opens at the bottom, simply type "outlook.exe /resetnavpane".

Step 2: When you have keyed in the command, press the Enter key or hit on "OK". The command will do the work now. Run Outlook now and your navigation settings will start getting recovered now.

find outlook.exe in run window

3 Delete Navigation Pane Configuration file

If recovering didn't help you out, try to delete the Navigation pane settings. The steps involved in this process are as follows:

Step 1: Launch the Run dialog box by simply pressing the Windows and R key together. When it opens, you need to key in "%appdata%\Microsoft\Outlook".

Step 2: You will happen to see the configuration files' list that is stored in Microsoft Outlook.

Step 3: In the search box now, make sure to key in "Outlook.xml file".

delete navigation pane settings

Step 4: when you find it, you need to right-click on it and go for the deletion. See if this works.

4 Turn off Compatibility Mode in Outlook

If unfortunately, the above method didn't solve the problem too, we can help you with this too. When Outlook is in compatibility mode, many problems can arise. And cannot open the Outlook window invalid XML can be one of them. Therefore, you need to turn it off to get everything smoother. This is how you should do it.

Step 1: Press on the Start button and simply type the "outlook.exe" in the search field.

find outlook.exe

Step 2: When it is being shown on the screen, you need to right-click on it. Pick out the "Properties" option.

click properties button

Step 3: When you see the Properties dialog box appearing, head to the "Compatibility" tab. Followed by this, you need to look for the "Run this program in compatibility for" option and uncheck the box beside it. Click on "OK" for confirmation.

turn off compatibility mode

5 Restore the Previous Version of the PST File

Here is the next method that you can try to get everything fixed. Make sure to follow the steps below carefully to get the "cannot start Microsoft Outlook" due to Invalid XML fixed.

Step 1: To start with, look for the folder in which your Outlook file was located.

Step 2: Now, you need to right-click on the folder and choose the "Restore previous versions" option from the menu.

restore from previous versions

Step 3: You will be navigated to the new dialog box. Here, you will be able to see the recent version of the selected folder. This can be seen in the "Previous versions" tab.

choose version

Step 4: Check here if the Outlook file that you need is here in the list by clicking the most recent folder.

Step 5: When you will find the missing file, click on the "Restore" button. A pop-up will spear where you need to hit "Restore".

press restore option

Step 6: In case you do not want to replace the previous version with the new one, you can go for the "Copy" option at the bottom. This will save the previous version to some other place.


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