Encountering the BAD_SYSTEM_CONFIG_INFO error on Windows can be distressing, especially when your computer refuses to boot properly. This Blue Screen of Death (BSOD) error generally indicates a problem with system configuration files or hardware settings that are critical to the normal functioning of your operating system. Fortunately, there are several reliable methods to fix this issue by following calm, step-by-step solutions. In this guide, we’ll walk you through the most effective solutions to resolve this error and restore your system’s stability.
What Causes BAD_SYSTEM_CONFIG_INFO Error?
The BAD_SYSTEM_CONFIG_INFO error may result from a number of issues, including:
- Corrupted or incorrect system registry settings
- Faulty RAM or hardware changes
- Outdated or mismatched drivers
- Damaged Boot Configuration Data (BCD)
- Software conflicts or recent installations
Before proceeding, ensure all critical data is backed up, if possible. If you are unable to access your system due to the BSOD, safe mode or a recovery drive may help.
Step-by-Step Guide to Fix BAD_SYSTEM_CONFIG_INFO
1. Boot into Safe Mode
The first step in resolving the error is booting into Safe Mode:
- Turn off the PC completely.
- Turn it on and immediately press F8 (or Shift + F8 for older systems) repeatedly until you see the Advanced Boot Options screen.
- Select Safe Mode with Networking.
If you can’t access Safe Mode traditionally, use a Windows 10/11 installation USB or DVD, navigate to Repair your computer > Troubleshoot > Advanced Options > Startup Settings, and restart to boot into Safe Mode.
2. Use System Restore
If the error starts appearing after a recent installation or update, using System Restore might help revert your machine to a previously stable state:
- Boot into Advanced Startup Options.
- Click on Troubleshoot > Advanced options > System Restore.
- Select a restore point before the problem began and follow the on-screen instructions.
This won’t affect your personal files but will remove apps and drivers installed after the selected restore point.
3. Repair the Boot Configuration Data (BCD)
Corrupted BCD files are a common reason for this error:
- Access Command Prompt from Advanced Options.
- Type the following commands, one by one:
bootrec /repairbcd bootrec /osscan bootrec /fixmbr bootrec /fixboot
After executing these commands, restart your PC and check if the error persists.
4. Fix the Windows Registry
If the system registry is corrupted, you can restore it using these steps:
- Open Command Prompt through the recovery environment.
- Run these commands:
cd C:\Windows\System32\config ren DEFAULT DEFAULT.bak ren SAM SAM.bak ren SECURITY SECURITY.bak ren SOFTWARE SOFTWARE.bak ren SYSTEM SYSTEM.bak copy C:\Windows\System32\config\RegBack\* C:\Windows\System32\config\
These commands rename the corrupted files and replace them with backups. Reboot your PC afterward.
5. Check RAM and Hardware Components
RAM issues might also trigger this error. It’s advisable to conduct a hardware diagnostic:
- Press Windows + R, type mdsched.exe, and hit Enter.
- Choose Restart now and check for problems.
This will initiate a memory diagnostic tool. Replace faulty RAM if errors are detected.
6. Update or Reinstall Drivers
Incompatible or outdated drivers may lead to configuration issues:
- Boot the system into Safe Mode.
- Go to Device Manager by right-clicking the Start button.
- Identify devices with yellow warning icons and right-click to update or uninstall the drivers.
- Download the latest drivers from the manufacturer’s website and install them manually.
7. Perform a Reset or Clean Installation
If the above methods do not resolve the issue, a system reset may be your last resort:
- Navigate to Troubleshoot > Reset this PC.
- Select Keep my files or Remove everything based on your preference.
- Follow the on-screen prompts to complete the reset.
Ensure your data is backed up before choosing to remove all files.
Conclusion
The BAD_SYSTEM_CONFIG_INFO error can stem from various underlying issues, but it’s typically fixable with structured troubleshooting. By following the steps outlined above—from booting in Safe Mode and repairing BCD to checking hardware—you can methodically eliminate each possible cause.
If you continue to face problems, it may be time to consult a computer technician or consider hardware replacement, especially if issues persist after fresh installation attempts.
