I have installed Lync 2013 client (Lync Basic) from the Office 365 download site and installed it on 2 computers. Both are running Windows 8 64-bit (and Office 365 Home Premium) and Lync works fine on one but crashes on startup on the other. I am getting the following event log entry:
Faulting application name: lync.exe, version: 15.0.4420.1017, time stamp: 0x5067326f
Faulting module name: mfcore.dll, version: 12.0.9200.16628, time stamp: 0x51a95ef1
Exception code: 0xc0000005
Fault offset: 0x000e679f
Faulting process id: 0xffc
Faulting application start time: 0x01cead963ef7d2f9
Faulting application path: C:\Program Files (x86)\Microsoft Office\Office15\lync.exe
Faulting module path: C:\WINDOWS\SYSTEM32\mfcore.dll
Report Id: 7e164db8-1989-11e3-becc-001d0920496d
Faulting package full name:
Faulting package-relative application ID:
I don't have Bluetooth or Shoretel on this PC and don't see any VDI, and haven't found anything else in the usual forum posts.
On some other discussions on the Internet, I have seen remarks about renaming the SIP folder or changing log-on credentials, but I didn't find the SIP folder on my PC and I don't know how to change Lync credentials when it won't start.
When I try to start Lync, and it crashes (on startup), Windows offers me the alternative to Debug. When I choose that, I get the Lync client running in the Visual Studio debugger. From the stack trace and the Module window, I can see that Lync is trying to read address 0x00000000 and failing with 0xc000005 (access denied), and the primary modules involved are the C runtime. I don't see any suspicious components that shouldn't be there.
Tom