Outlook 2010 hangs on Startup

Try starting Outlook in Safe Mode.   Start and type Outlook /safe in the run box. Does it start now ?

.... Thinkpads_User

We need more information - which Windows version are you using and how is Outlook connecting to the mail server, is it Exchange on LAN or Remote, POP or IMAP connection?

As said above try starting in safe mode and check whether its opening or not.
If initialization failed then check event viewer and check for event ids and update back.

Outlook /safe
If this helps, disable all unnecessary add-ins
File-> section Options-> section Add-Ins
At the "Manage" dropdown list at the bottom select which type of add-ins you would like to enable/disable
Press "Go…" and unckeck all unwanted add-ins
http://www.addictivetips.com/microsoft-office/how-to-disable-remove-outlook-2010-add-in/

My only addition to everything that has been already suggested above is: outlook/safe:3 (start outlook without com-addins)

Nothing helped!  Outlook /safe:3 - still hangs on starting up.

Nothing being logged to the admin logs.

It is my own personal Outlook, not working with exchange or any other server.
Outloo 2010
Windows 7

If:
1. Safe mode does not help
2. Addins removed does not help
3. Uninstall/Reinstall does not help
4. It started recently

Then:
1. Scan very thoroughly for malware (and double up with Malwarebytes).
2. Open cmd.exe with Run as Administrator. At the command prompt, run SFC /SCANNOW , allow to complete and restart.
3. Finally consider the possiblity of backing everything up and re-installing WIndows 7.

I have Outlook 2010 (Office 2010) running on Windows 7 and it runs perfectly.

... Thnkpads_User

Thanks for the update. I had landed at that conclusion in my post immediately prior. ... Thinkpads_User