As the dump files say, atikmdag.sys and atikmpag.sys are causing the troubles. AMD Support & Drivers
Remove the Catalyst Control Center, and only install the Display Driver
At the same time, there is another cause of crashes , watchdog.sys, bugcheck code 0x119. That means the video scheduler has detected a fatal violation. To get rid of it, do
- Download and install updates and device drivers for your computer from Windows Update.
- Scan your computer for computer viruses.
- Check your hard disk for errors.