Bddci.sys Blue Screen of Death: How to Fix on Windows 11

Have you recently encountered the dreaded bddci.sys blue screen error? If yes, this article will help to solve this problem.

This BSOD on Windows 11 is a sign that your system is malfunctioning. When this error occurs, your PC keeps restarting or rebooting, which results in a system crash. The following errors can be associated with bddci.sys-

• KMODE EXCEPTION NOT HANDLED
• SYSTEM SERVICE EXCEPTION
• APC INDEX MISMATCH
• PAGE FAULT IN NON-PAGED AREA

What is bddci.sys failure error?

Bddci.sys failure error is a problem that occurs because of the discord between the system and bddci.sys file. You may face this blue Screen of death after installing new hardware or software or after an attempt of failed a Windows Update.

Outdated firmware, corrupt files & drivers, and software issues like problems with Bitdefender antivirus can be the root of this issue.

How can I fix bddci.sys blue screen error on Windows 11?

You can resolve the issue of bddci.sys failure error by applying a few methods. However, before going through these detailed methods, we suggest you do these quick steps:

• Restart your device, then check if the issue is resolved.
• Remove external devices, and check if the sys file error is gone.
• Install all the pending Windows updates.

Then, try the following methods:

1. Rename the Bddci.sys file

By renaming the system file, you may be able to get rid of the bddci.sys BSOD error on your PC and system. Let’s show how you can do it-

1. Press Win+ E to open This PC.
2. Now locate Local Disk (C:) and tap on it.
3. Click on Windows Folder and go to the System 32 folder.
   
4. Locate the file bddci.sys.
5. Right-click on it, and from the drop-down list, choose Rename.
6. Rename the file as bddci.bak/ bddci.old
7. Restart your pc after the process.

2. Uninstall Bitdefender

Sometimes the reason behind your bddci.sys blue screen Windows 11 error can be the presence of the Bitdefender security program. So, if you want to solve this BSOD error, uninstalling the Bitdefender Antivirus utility can be an effective solution. 

To do it, follow this method:

1. Press Win+ I to open Settings.
   
2. From the Settings menu, click on Apps and select Installed apps.
   
3. Select Bitdefender from the right pane.
4. Click on Uninstall and follow the instructions. (For an example, follow the image below)
   
5. Restart your PC and check if the BSOD error appears. 

3. Run the System/SFC Scan

Confliction between system files and bddci.sys can cause the bddci.sys error. The solution is to run the SFC scan to repair corrupted Windows SYS files. To do this-

1. Right-click on the Windows logo and select Terminal (Admin).
2. Click Yes on the user account control box on your screen.
3. Enter the SFC/Scannow syntax command.
   
4. Now the system will scan the files and show you the execution percentage.
5. After the percentage reaches 100, restart your PC.

4. Uninstall/Reverse the Windows Update

Even though updating Windows usually helps your system run smoothly and fixes the BSOD eros, it can be an exception. It means you might encounter the bddci.sys error after installing the updates. To uninstall/ patch the Windows update, follow these steps-

1. Press Win+R to open Run
2. Type the appwiz.cpl command in the dialogue box that will prompt on your screen.
3. Click Enter, and then Uninstall or change a program will appear in front of you.
4. Then, click on View installed updates.
   
5. Select Uninstall on which update you want to uninstall.
   
6. Select Uninstall for confirmation.

5. Carry off the System Restore

If none of the above methods fix BSOD bddci.sys error, you can perform the system restore. To execute this method:

1. Open the Run command like before.
2. Type or enter the rstrui in the dialogue box.
   
3. Click on Enter, and you will see the System Restore Wizard.
   
4. Select Next, then put the date and time one after another when the bug started appearing.
5. Click on the Finish and select Yes to confirm the process.

Extra steps:

If the above methods don’t work for you, try these additional steps:

• Update Bitdefender AntiVirus App.
• Clean Boot Windows to get rid of the bugs.
• Seek professional help if you cannot fix it yourself.

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We hope you can now fix the bddci.sys blue screen error. If you have any questions, let us know in the comment box.