On my Lenovo Thinkpad Yoga 64 bit laptop I used the MS Lync App and everything was working fine.
Then my company (University) offered Office 365 and I downloaded the 32 bit version (recommended)
I had 2 versions of Lync working. Until recently. :(
2 weeks ago I saw a window when I started my laptop that mentioned "Skype for business" and I was excited to see the new interface / improvements but alas it did not start. I tried to use the Lync App, but that one stopped working too.
I looked in the event viewer and saw 2 notifications.
1. Event ID 35 Source SideBySide
Activation context generation failed for "C:\Program Files\Microsoft Office 15\root\office15\lync.exe.Manifest".Error in manifest or policy file "C:\Program Files\Microsoft Office 15\root\office15\UccApi.DLL" on line 1. Component identity found in manifest does not match the identity of the component requested. Reference is UccApi,processorArchitecture="AMD64",type="win32",version="15.0.0.0". Definition is UccApi,processorArchitecture="x86",type="win32",version="15.0.0.0". Please use sxstrace.exe for detailed diagnosis.
2. Event ID 1000 Source Application Error.
Faulting application name: lync.exe, version: 15.0.4719.1000, time stamp: 0x552cf129
Faulting module name: ntdll.dll, version: 6.3.9600.17736, time stamp: 0x550f42c2
Exception code: 0xc0000005
Fault offset: 0x0001df63
Faulting process id: 0x1890
Faulting application start time: 0x01d09b000e7aa5be
Faulting application path: C:\Program Files\Microsoft Office 15\root\office15\lync.exe
Faulting module path: C:\windows\SYSTEM32\ntdll.dll
Report Id: 5026cc90-06f3-11e5-82d6-ac7ba14cb331
Faulting package full name:
Faulting package-relative application ID:
I tried uninstalling all and do a reinstall.
Also tried the 64 bit version of Office 365. (That give a slightly different error, but wont start either)
I hope that someone can help me on this one.