Hi there. I have similiar problem. I didn't check all my games yet but for now some of them has problem with directX. It says "INITIALIZATION PROBLEM, I CAN NOT FIND DIRECTX 5". Funny coz it says i have directX 12 installed, and yeah I've tried to install
this thing -> http://www.microsoft.com/en-us/download/details.aspx?id=35 but didn't help. I also reinstalled my drivers after upgrading to windows 10.
System Information
Time of this report: 8/4/2015, 13:43:59
Machine name: KUCHAR-KOMPUTER
Operating System: Windows 10 Pro 64-bit (10.0, Build 10240) (10240.th1_st1.150717-1719)
Language: Polish (Regional Setting: Polish)
System Manufacturer: To Be Filled By O.E.M.
System Model: To Be Filled By O.E.M.
BIOS: BIOS Date: 05/26/14 14:21:16 Ver: 04.06.05
Processor: Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz (8 CPUs), ~4.0GHz
Memory: 8192MB RAM
Available OS Memory: 8112MB RAM
Page File: 4438MB used, 11864MB available
Windows Dir: C:\WINDOWS
DirectX Version: 12
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
Miracast: Available, with HDCP
Microsoft Graphics Hybrid: Not Supported
DxDiag Version: 10.00.10240.16384 64bit Unicode