Visual Studio 2010 Crashes While Loading a project / After exiting the application under test in debug.

I currently have 2 crashes happening on my system when using Visual Studio 2010.

1. Start "devenv /safemode" from administrative command console.

2. Open Project.

3. Run Debugger

4. "Exit the application."

5. Visual Studio Crashes:

Faulting application name: devenv.exe, version: 10.0.40219.1, time stamp: 0x4d5f2a73
Faulting module name: ntdll.dll, version: 6.1.7601.18247, time stamp: 0x521ea8e7
Exception code: 0xc0000005
Fault offset: 0x00038e19
Faulting process id: 0x2014
Faulting application start time: 0x01cf2f1da986414b
Faulting application path: C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe
Faulting module path: C:\Windows\SysWOW64\ntdll.dll
Report Id: 252ab81e-9b11-11e3-9776-8851fb6be7df

6. Visual Studio Restarts.

7. Try to open project, Visual studio crashes:

Faulting application name: devenv.exe, version: 10.0.40219.1, time stamp: 0x4d5f2a73
Faulting module name: sbuspkcs11.dll_unloaded, version: 0.0.0.0, time stamp: 0x513df012
Exception code: 0xc0000005
Fault offset: 0x688d9374
Faulting process id: 0x2020
Faulting application start time: 0x01cf2f1e0067dbdf
Faulting application path: C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe
Faulting module path: sbuspkcs11.dll
Report Id: c78a2373-9b11-11e3-9776-8851fb6be7df

I've tried installing the follow KB Fixes:

VS10sp1-KB983509

VS10SP1-KB2643415

VS10SP1-KB2662296

Please assist, I will be available to perform any necessary tasks to resolve this issue, thank you in advance.