How to fix Sdbus.sys Blue Screen Errors on Windows 10?

By ivan.diskin | February 11, 2019 |

greater than 7 minutes

It is not unusual for your PC to encounter the sdbus.sys blue screen error. SYS files such as sdbus.sys are essential system files or device drivers developed by Microsoft for use in the Windows operating system. The sdbus.sys file is located in C:\Windows\System32\Drivers, and it contains the code required to correctly load and configure the Windows operating system.

This file also enables the communication between internal or attached hardware, such as the printer, with third-party applications like your browser.

The sdbus.sys files contain critical information responsible for your system’s seamless operation. If your computer is missing the information from this file while attempting a specific task, like printing, it generates the sdbus.sys blue screen errors. However, Stop errors should not be a reason to cause panic. This article shows you how to repair sdbus.sys issues and provides clear and easy to follow workarounds.

What Causes Sdbus.sys Error?

The sdbus.sys blue screen error usually appears after the installation of new software or hardware, on Windows startup, or when you run a specific sdbus.sys-related program. Knowing the exact time when this error occurs makes it easy to troubleshoot the problem.

Some of the reasons that cause the sdbus.sys error include:

  • Incompatible, outdated or missing device drivers.
  • Corrupt or missing components in the Windows registry.
  • Malware attack.
  • Incomplete or incorrect software installation.
  • Memory (RAM) issues.
  • Low disk space.
  • Faulty hardware.

How to Fix Sdbus.sys Blue Screen Errors

When attempting to fix the sdbus internal error, avoid downloading SYS files from unverified websites as they may contain malicious code that could further harm your computer. The following solutions will help you solve the sdbus.sys issues.

If you cannot access the desktop, you need to enter Safe Mode first. To do this:

  1. Switch on your PC, and just when Windows starts to boot, hold down the “Power” button to turn the device off. Repeat this process three times, and allow the computer to fully restart the fourth time. This triggers “Automatic Repair”.
  2. If asked to select an account, choose your administrator account and enter your password.
  3. Select Advanced options > Troubleshoot.
  4. Open “Advanced options”, and then select Startup Settings > Restart.
  5. After your computer restarts, press 4 or F4, 5 or F5, 6 or F6 to enter Safe Mode.

Now, you can employ these fixes in the normal way.

Fix 1: Update Outdated Device Drivers

There is a high possibility that the sdbus.sys blue screen error is caused by missing, outdated or incompatible device drivers. Your PC drivers can function correctly one day, and unexpectedly stop working the next day.

To ensure your device drivers work smoothly, you need to update them. The problem comes in when you try to find the exact sdbus.sys-related hardware. Regardless of your experience of looking for and downloading drivers, this process can be time consuming and unexciting. Plus, why run the risk of installing incompatible drivers?

For this reason, we recommend using a tool like Auslogics Driver Updater to automatically update all available device drivers on your PC. It is simple to use, and once you install the program, all you have to do is scan your device to identify the drivers that are outdated or missing.

With the one-click feature, you will be able to update the drivers fast and with ease. Apart from installing the latest official drivers from the manufacturer’s website, Auslogics Driver Updater creates backups to make the process of rolling back drivers, if necessary, easy. This program works on Windows 7, Windows 8, and Windows 10.

To keep your PC at optimal performance, it’s always advisable to ensure all your device drivers are up-to-date. After using the tool to fix driver issues, restart your computer and check if you will still run into the sdbus.sys blue screen error. If you do, then the issue is not driver-related. Try the next troubleshooting step.

Fix 2: Repair Registry Entries

Issues with the Windows registry can result in the blue screen of death with sdbus.sys. Since the Windows registry is where all the critical hardware and software information and configurations are stored, invalid, corrupt or missing entries could lead to the sdbus.sys error.

Changes in the registry happen due to software installation or uninstallation and malware infections. The registry requires regular maintenance to keep it stable to avoid common PC problems.

Because the sdbus.sys is associated with MSDN Disc 4455.01, it is crucial that you create a backup on an external hard drive in case something goes wrong when fixing registry issues.

To do this:

  1. Press the Windows Key, or click “Start”, and then type regedit.
  2. Press “Enter” to open “Registry Editor”.
  3. Select the sdbus.sys-related key, like MSDN Disc 4455.01, that you want to back up.
  4. From the “File” menu located in the top-left corner of the window, choose “Export”.
  5. In the “Save in” section, choose the destination folder where you want to save a copy of the MSDN Disc 4455.01 key.
  6. Assign a relevant name to your backup file in the “File Name” box, and click “Save”.
  7. The file is saved with a .reg file extension. You now have a backup of the MSDN Disc 4455.01 key.

Next, you need to find a reliable registry cleaner software like Auslogics BoostSpeed. Making changes to the Windows registry is highly risky and could damage your system. That’s why you should only use a program developed by a reliable company, a Microsoft Gold Partner. The tested and approved Auslogics BoostSpeed tool will carefully repair invalid and corrupt Windows registry entries without causing any damage.

This will restore system stability and your PC’s health to ensure smooth performance. The program also runs full system maintenance to remove junk files, solve startup issues, and optimize your PC settings.

Fix 3: Scan for Memory Issues

RAM (Random Access Memory) corruption can also cause hardware-related sdbus.sys blue screen errors. If your computer restarts suddenly or beeps on startup, your RAM might be corrupt.

If you recently added a new memory stick, remove it to be sure it’s not causing the BSOD. If the issue disappears, then you need to replace it. However, if it is not the culprit, you need to run the Windows Memory Diagnostic tool to test the RAM stick you are using.

To proceed:

  1. Press the Windows Key+S to open Cortana. Type memory diagnostic and hit “Enter”.
  2. This opens the “Windows Memory Diagnostic” tool.
  3. To run the tool immediately, select the first option that says “Restart now and check for problems (recommended)”. Otherwise, you can select the second option that says, “Check for problems the next time I start my computer”.
  4. When the PC restarts, you’ll see a blue screen showing the progress of the test on memory problems. When the process is complete, Windows will reboot and you’ll see a detailed report of the diagnosis in the Notification Area.

If Windows didn’t find any errors with your memory, then the sdbus internal error must be caused by something else. Move on to the next fix.

Fix 4: Run Windows Error Checking Utility

The Windows Check Disk tool can help to recover and repair bad sectors on your hard drive, file system issues, and hard drive errors. It is worth it to run Disk Error Checking to find out if it will get rid of the sdbus.sys blue screen error.

Here are the steps to follow:

  1. Launch Windows Explorer, and click “This PC” on the left pane.
  2. Right-click the C drive, and select “Properties”.
  3. Choose the “Tools” tab.
  4. Select “Check” under “Error checking”.
  5. If you see a pop-up window that says “You don’t need to scan this drive. We haven’t found any errors on this drive. You can still scan the drive for errors if you want”, select “Scan drive”.

Alternatively, for a more thorough scan, you can utilize “Command Prompt” using the steps below:

  1. Click “Start”, and type cmd.
  2. Right-click the first result, Command Prompt, and select “Run as administrator”.
  3. Execute the following command: chkdsk C: /f /r /x. If chkdsk is unable to run because Drive C is in use, type Y to schedule the volume to be checked when you restart your system.
  4. Restart your PC for the scanning process to begin. Don’t press any key, otherwise, you will cancel the scan. This will take longer than the first option above, and is more likely to fix any errors on the disk.

If this fails, try the next workaround.

Fix 5: Update Windows

If you are still getting the sdbus.sys internal error after applying the above solutions, it is a good idea to check if there are pending Windows 10 updates. Installing the latest updates could address the problems affecting sdbus.sys and fix them.

To check for Windows 10 updates:

  1. Hit “Start”, and type update.
  2. Press “Enter” to open “Windows Update”.
  3. Select “Check for updates”. If there are pending updates, Windows will automatically install them. In an older Windows version, click “Install Updates” to initiate the process.
  4. After Windows updates successfully, restart your device and check if the sdbus.sys error message has been fixed.

If it doesn’t fix the problem, proceed to the next option.

Fix 6: Run System File Checker

System File Checker is a Windows 10 utility that checks for and repairs corrupted or missing system files.

To run it:

  1. Press the Windows Key+S, and type command prompt.
  2. Right-click the first result titled, “Command Prompt (Desktop app)”, and select “Run as administrator”.
  3. Type the following command, sfc /scannow, and hit “Enter”.
  4. Be patient as this may take a while. After the process is done, check if the blue screen error has been resolved.

If this doesn’t repair the sdbus.sys issues, try to run the DISM command line to see if it will fix it.

To execute the DISM Command:

  1. Open “Command Prompt” with admin privileges as outlined above.
  2. Input the command, DISM.exe /Online /Cleanup-image /Restorehealth, and hit “Enter”. (Please note that there is a space before each “/”). This process may take longer to complete.

If the sdbus.sys blue screen error still bothers you, you might have to perform a system restore.

Fix 7: Run System Restore

If you suspect the sdbus.sys issue is caused by recent changes to your system, a system restore will undo those modifications and return your PC to a state before the error occurred.

To try this option, there must be a restore point that was created before you started to encounter the blue screen error.

To restore your system, employ the steps below:

  1. Hit “Start” and type restore.
  2. Press “Enter”. This opens the “System Properties” window.
  3. Be sure you are on the “System Protection” tab, and then select “System Restore”.
  4. Click “Next”, and then choose your preferred restore point.
  5. Click “Next”, and then “Finish”. Your device will restart to effect the changes.

After the process is complete, your system should now function normally again.

Are you still experiencing the sdbus.sys blue screen error after applying all the above fixes? Reach out to us in the comments below.

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