<p><a href="http://wincert.net/wp-content/uploads/2015/01/microsoft-office.jpg"><img class="alignnone size-full wp-image-558" src="http://wincert.net/wp-content/uploads/2015/01/microsoft-office.jpg" alt="microsoft-office box" width="720" height="340" /></a></p>
<p>Today, once I&#8217;ve installed my new OS Windows 7 RTM with Microsoft Office 2010 Technical Preview and have configured all of my mail accounts, I&#8217;ve tried to delete some un-needed .pst file. Well, that was a mistake, once I closed Outlook I got Blue Screen and PC restarted, I tried to start Outlook and soon after the splash screen it showed an error:</p>
<p><strong>&#8220;Cannot start Microsoft Office Outlook. Cannot Open the Outlook Window”</strong></p>
<p>Even after uninstalling and repairing Outlook 2010 using the Office 2010 set up, the same error occurred. Outlook failed to start even in the safe mode when this error occurred. I have also tried to remove Outlook profiles and all .pst files, create new ones, but with no luck.</p>
<p>This error is due to the problem with Outlook navigation panel which is failing to start and this could be due to many reasons like improper shutdown of Outlook.<br />
The fix to this problem depends on the issue with Outlook. You can fix this issue using the methods mentioned below.</p>
<p><span style="color: #2e8b57;">1. Open Start menu and Click Run (Windows Key + R) and type Outlook.exe /resetnavpane. Now try opening outlook, if the issue was due to navigation panel, resetting it would solve the issue. If the issue is still not solved, try step 2.</span></p>
<p>2. Run the Inbox Repair tool in Outlook- Inbox repair tool (Scanpst.exe) is included in the Office CD and is a tool to repair issues with Inbox personal folder (.pst) files. You can check the Microsoft KB article 272227 for more details on this.</p>
<p>It is most likely that you can solve this issue using Step 1.</p>