The Amdacpbus.sys is basically a part of AMD’s Audio Co-Processor driver and is responsible for communicating and managing AMD hardware connected to the AMD chipset. This includes having the AMD graphics card and AMD audio controller. This post discusses what causes Amdacpbus.sys Failed Blue Screen on Windows, and the four relevant fixes that might address this issue on your behalf.
What error messages do you get when encountering this BSOD Error?
When the Amdacpbus.sys file fails to start, it often results in an error message that reads the following –
Stop Code: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED What failed: amdacpbus.sys
What causes Amdacpbus.sys file to result in a Blue Screen error?
The Amdacpbus.sys failed BSOD error normally occurs in Windows when your system meets one or a combination of the following issues –
- The AMD drivers must have been corrupted or outdated.
- The presence of corrupt system files and folders.
- A quick shutdown of your PC might also result in a fast bootup error.
Now that you know what causes this blue screen error on Windows, follow the below section to get some relevant fixes.
How to Fix Amdacpbus.sys Failed Blue Screen Error
If you are encountering a blue screen error message depicting what goes wrong on your computer, you might notice the Amdacpbus.sys failed next to What failed? To overcome this BSOD error, you may try out the below fixes and check if they indeed resolve this problem on Windows.
Before you apply any fix, make sure to boot your device into Safe Mode. This mode restricts using third-party services and apps and thus, you might get what you were looking for.
- Update all AMD drivers
- Perform SFC/DISM Scans
- Roll back AMD drivers
- Revert your PC back to an earlier state
1] Update all AMD drivers
As stated in the error message itself, the Amdacpbus.sys Failed Blue Screen error mostly occurs due to glitches inside the AMD drivers. If you haven’t upgraded this driver in the last few days and yet this error message is appearing, you better update all AMD drivers.
Though you can check for AMD driver updates via Windows Update > Advanced options > Optional updates, we suggest going for the AMD Driver Autodetect tool. This tool is developed by AMD teams, and it is quite pro to automatically detect drivers that need an upgrade. Wait for this tool to find and repair outdated AMD drivers on your computer.
How do I uninstall and reinstall AMD drivers?
If updating AMD drivers doesn’t help in resolving the Amdacpbus.sys Failed Blue Screen, you may try uninstalling and then reinstalling the removed AMD drivers. Follow the below instructions to uninstall AMD drivers on Windows PC –
- Press Win + R to launch the Run dialog.
- Type “
devmgmt.msc” on it and hit OK. - When the Device Manager launches, go to the Display Adapters and click to expand this section.
- Right-click on the available driver and hit Uninstall device.
Note: Do repeat the above steps for the following drivers as well – chipset drivers, and Audio drivers.
- Wait for the uninstallation to complete and once this is over, click the Scan for hardware changes button.
The removed driver will reinstall on its own. Reboot your computer next and check if you can now boot into Windows normally.
2] Perform SFC/DISM Scans
Blue Screen errors including the Amdacpbus.sys failed error may also occur when certain files get corrupted somehow. In order to overcome this bug now, you must run both SFC and DISM checks. Here’s how to perform this task –
- Launch Command Prompt as administrator first, and run the following codes on it –
sfc /scannow
DISM /Online /Cleanup-Image /RestoreHealth
- Just make sure that you wait enough for the above command to complete 100%.
Assuming you did run both of these command-line programs, and they complete without any issues, restart your device next. Sign back into your device normally and check if the BSOD error resolves now.
3] Roll back AMD drivers
Several users confirmed fixing this error code when they roll back their AMD drivers. If you do remember installing the AMD driver on your computer, you better uninstall or at least roll back to its previous version. Here’s how to resolve the Amdacpbus.sys Failed Blue Screen on Windows –
- Launch the Power menu by pressing Windows + X.
- Select Device Manager, and when it opens up, locate Display Adapters inside it.
- When this section expands, right-click on the graphics driver present inside it, and select Properties.
- Head over to the Driver tab, and click on Roll Back Driver.
The system will remove the recent installation of this driver and thus resolve the Amdacpbus.sys Failed Blue Screen on your computer. Restart your PC and check if you can boot normally into Windows now.
4] Revert your PC back to an earlier state
If none of the above fixes work to resolve the Amdacpbus.sys Failed Blue Screen error and you do have a restore point on your computer, you should try reverting your device back to its stable state. Doing so will remove all recent changes to your computer including the apps that you have installed recently. Here’s how to use a restore point on Windows –
- Power On and off your device 2-3 times.
- When the system boots into the Windows Recovery screen, go to Troubleshoot > Advanced options and click System Restore.
- Choose the latest restore point and follow the on-screen instructions.
The system will scan this backup for possible infection and if none is found, your operating system will revert back to its earlier stable point.
If you were able to enter Safe Mode, you may use these steps to downgrade your system to its previous state. In case there isn’t any restore point available on your computer, go for a clean installation of Windows as the last resort.
