BSOD after Cubase 8.5 hangs up with Media Bay

System Win 7, 64 bit, audio interface Steinberg MR816CSX, all drivers in the system up to date. After update to 8.5 a VSTi can be loded from Media Bay, however aubsequent attemtp to change a present causes Cubase ( not system) to freeze. When closed with System Manager ( shows Cubase as not responding) causes immediate BSOD.
Repeated several times. Included please find dump reports - they indicate a problem at kernel level. Any help would be much appreciated as I do not know if this is a bug or some system incompabilkity with the new update

Dump File : 122015-85847-01.dmp
Crash Time : 2015-12-20 17:44:00
Bug Check String : SYSTEM_SERVICE_EXCEPTION
Bug Check Code : 0x0000003b
Parameter 1 : 00000000c0000046 Parameter 2 : fffff800038ab21c
Parameter 3 : fffff88009f03eb0 Parameter 4 : 0000000000000000
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+73c40
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.19045 (win7sp1_gdr.151019-1254)
Processor : x64
Crash Address : ntoskrnl.exe+73c40
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\122015-85847-01.dmp
Processors Count : 8
Major Version : 15
Minor Version : 7601
Dump File Size : 334 288
Dump File Time : 2015-12-20 17:50:50