Same here! Blizzard says it is due to the newest driver update 10.18.15.4256. It so far appears to only be with the Intel(R) HD Graphics 4600. Every time the crash occurs it's making a Windows Error Log:
Windows Error Reporting Fault bucket LKD_0x141_Tdr:6_IMAGE_igdkmd64.sys, type 0
Event Name: LiveKernelEvent
Response: Not available
Cab Id: 22d68bf2-d59a-4ecc-a267-09dc0734d029
These files may be available here:
Rechecking for solution: 0
Report Id: 478691fb-ae60-11e5-9bd9-28c2dd31093e
Report Status: 0
For now, Blizzard suggests I alert Intel (happening right now) and locate an older Intel driver before version number: 10.18.15.4256 and revert back to it. This is absolutely obnoxious, but at least Blizzard (if you report it) will give you 7 days free gameplay while you try and fix the problem
You get one of the following messages:
- The Intel® Driver Update Utility reports the following message: A customized computer manufacturer driver is installed on your computer. The Intel® Driver Update Utility is not able to update the driver. Installing a generic Intel driver instead of the customized computer manufacturer driver may cause technical issues. Contact your computer manufacturer for the latest driver for your computer.
- You are unable to install the Intel® Graphics Driver downloaded from the Intel Web site and encounter one of the following error messages:
- Error: The driver being installed is not validated for this computer. Please obtain the appropriate driver from the computer’s manufacturer. Setup will exit.
- Error: This driver could not be installed on this computer. Please contact the computer's manufacturer for further information.
A customized version of the Intel Graphics Driver may be installed on your computer. This occurs if your computer manufacturer (also referred to as Original Equipment Manufacturer or OEM) has chosen to change features, incorporate customizations, or make other changes to the graphics driver software.
As you can see this did not work
You may try forcing the installation of Intel generic drivers by performing manual procedure, see here for instructions: How to Manually Install a Driver in Microsoft Windows 8* or Windows...