Windows Live Mail 2011 constantly crashes

Hey everyone, I'm having trouble with Windows Live Mail 2011. It crashes everytime I use it. Sometimes it crashes immediately on startup, other times it crashes a couple minutes after startup. Here's my error message:

Description
Stopped working
Faulting Application Path: C:\Program Files (x86)\Windows Live\Mail\wlmail.exe

Problem signature
Problem Event Name: APPCRASH
Application Name: wlmail.exe
Application Version: 15.4.3508.1109
Application Timestamp: 4cda7a4f
Fault Module Name: ntdll.dll
Fault Module Version: 6.1.7600.16559
Fault Module Timestamp: 4ba9b29c
Exception Code: c0000005
Exception Offset: 00038c19
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 1033

Any help solving would be greatly appreciated. WLM is my preferred email client and I don't want to have to switch to something else.

Maybe a repair on WLM will sort it.

Windows Live Mail Repair

I've tried repairing, as well as uninstalling/reinstalling, and nothing has worked. It keeps crashing still.

Well thats about all I can suggest at the moment. Will continue to see if I can find an answer

I got Microsoft Security Essentials running daily quick scans.

Is your internet explorer working OK? How long has WLM been problematic.

I use Mozilla Firefox. But IE seems to work fine.

It's a new PC, I bought it 6 days ago. WLM worked fine for 2 days and then started crashing uncontrollably afterwards.

As Gornot said the ntdll.dll points to the windows kernel. Download the free version of malwarebytes anti malware update it and then run a full scan. It may pick something up that MSE is missing if indeed there is a nasty lurking somewhere.
Malwarebytes

I ran the full scan with Malware Bytes and it found nothing.

Guess I'm gonna give up and switch to another client. Thanks for trying to help, though.