How to fix atikmdag sys error BSOD startup issue Windows 10?

BSOD is a fatal Windows error that generates full-screen windows and typically prevents the system from booting. It could be a result of malware infection, but in most cases culprit is serious system crashes such as driver software, hardware failure, failure of the software running in the driver software, kernel and etc.

Quite recently, people have reported about atikmdag sys error bsod startup issue with stop error SYSTEM_THREAD_EXCEPTION_NOT_HANDLED. The particular issue is a type of BSODs that occur when users try to use X-Plane simulator on their PC.

The atikmdag sys file is a software component of ATI Radeon Family from Advanced Micro Devices, Inc. its function is to enable hardware components to communicate with software without any additional programs.

The atikmdag.sys blue screen error occurs when users try to upgrade their system or soon after the update. Most of the people reported about the issue have AMD graphic cards installed. In this case, the culprit of the issue under discussion could be external graphic card drivers which run into conflict with the hardware.

Methods to fix atikmdag sys error bsod startup issue

If you manage to boot up your device in Safe Mode, kindly do this at first. If you can’t, then you should prepare a bootable Windows USB drive. But, if none of the methods work, there might be a case that malicious malware is triggering the issue. To find it, you should employ some powerful antivirus tool.

Method 1: Reinstall conflicting driver

  • Start your PC and press F8 before you see Windows logo on screen,
  • Click on Troubleshoot option in the new window and then select ‘Advanced’ options,
  • Click on Startup settings and click F4 or F5 on the following screen,
  • PC will boot up in Safe Mode,
  • Right-click on Windows key and open Device Manager,
  • Expand the Display Adapters section, select the conflicting driver, and click Uninstall,
  • Close the Device Manager now and open Control Panel,
  • Go to the Programs and Features and locate AMD Catalyst Installer Manager or other software related to it,
  • Click on it and select Uninstall,
  • Reboot the device normally and then visit the manufacturer’s website of the driver to download and install the latest driver version.

 Method 2: Undo recent changes

There might be some unknown changes take place within system that results in atikmdag sys error bsod startup. If this is the case, we recommend you reverse the modifications with the help of these steps:

  • On the Windows Search, type System Restore and click Enter,
  • Select System Restore and follow the on-screen instructions to create a restore point,
  • Reboot the device once the process is complete.

Method 3: Run Sfc /scannow command

  • Search for Command Prompt Admin on the Windows Search,
  • On the black window appears, type sfc /scannow and hit Enter,
  • Complete all the commands given and see then if the problem is resolved.

Method 4: Install missing updates

  • Search for Windows Update,
  • Once in the Windows Update, check for available updates,
  • If there is update available, opt for install updates.

If atikmdag.sys blue screen error could occur when you have some updates that have not been installed properly, this method is helpful.

Method 5: Check your disk for possible damage

  • Open Command Prompt as Admin,
  • In the black dialogue box appears, type in chkdsk /f command and hit Enter,
  • After that, follow the commands provided with and see if this works for you.

Method 6: Repair PC using Windows Installation Media

If you can’t boot your system due to atikmdag.sys blue screen error, you should use Windows 10 installation media to complete the repair:

  • Reboot your device and press any key to boot up the system in the installation media,
  • Select your language, time, currency, keyboard/ input method and then press Next,
  • Click on Repair your Computer and select the OS type you want to repair,
  • Click Troubleshoot> Advanced and then click Automatic Repair or Startup Repair,
  • When the system detects the OS, select the one that is running with your PC,
  • Finally, unplug the USB or remove DVD bootable media and try booting your device,
  • If still you can’t boot up, click power button and try boot your PC,
  • Press F8 repeatedly at boot and select Repair your computer,
  • Click on Command Prompt and type the below commands:

bootrec /fixMBR
bootrec /fixBoot
bootrec /rebuildBCD


That’s all! We have provided all possible fixes for atikmdag.sys blue screen error. Hope so, these fixes really helpful for you in getting the required fix. if you want a quick solution, you can use automatic PC Repair Tool that can look for possible Windows issues to provide its automatic repair.