iTunes freezes at startup

I have tried uninstalling all apple programs and reinstalling, that didn't work,,,

Here is my error report;

Description:

A problem caused this program to stop interacting with Windows.

Problem signature:

Problem Event Name: AppHangB1

Application Name: iTunes.exe

Application Version: 11.1.3.8

Application Timestamp: 5274a87d

Hang Signature: e34b

Hang Type: 2048

OS Version: 6.1.7601.2.1.0.768.3

Locale ID: 1033

Additional Hang Signature 1: e34b8f9b242b25015f7bb6b91bb96373

Additional Hang Signature 2: 24b9

Additional Hang Signature 3: 24b97814e98ffde6bb39f32f4335973a

Additional Hang Signature 4: e34b

Additional Hang Signature 5: e34b8f9b242b25015f7bb6b91bb96373

Additional Hang Signature 6: 24b9

Additional Hang Signature 7: 24b97814e98ffde6bb39f32f4335973a