7 Easy Ways to Fix Bad System Config Info Error on Windows 10/11

What Causes Bad System Config Info Error Code

Some computer users report that they have encountered bad system config info error and this error will cause blue screen and prevent them to boot up computer (there are other causes to blue screen, click here to know more). When bad system config error occurs, the computer often displays the following information and indicates the stop code bad system config info.

Surely, the computer also may display the following information when bad system config info error occurs. BAD_SYSTEM_CONFIG_INFO error is also indicated on the screen.

Bad system config info error can be caused by both software problem and hardware problem, such as: 

• Hardware Issues: damaged memory bar and hard disk, loose cable and port, etc.
• Software Issues: problematic Windows update and software incompatibility, corrupted MBR, incorrect Boot Configuration Data (BCD) file, corrupted registry, bad drivers, etc.

How to fix bad system config info Windows 10/11? You can adopt the following methods to fix it. Please note that most of the following methods require you to enter Windows. If you can’t enter Windows, you can try entering Safe Mode. Here is the guide on how to enter Safe Mode Windows: 

• Enter WinRE.
• Navigate to Troubleshoot > Advanced options > Startup Settings.
• Click F4 key to choose Enable Safe Mode option.

Fix 1. Troubleshoot Hardware Issues

Please make sure all cables and hardware components are connected correctly. Then, you should check RAM and hard drive for errors. Here is the guide:

• Press “Windows + R” keys and type “mdsched.exe“.
• Select “Restart now and check for problems“. The computer will restart and run a memory check. This process will usually take a few minutes.

If the result indicates that there are some problems with the RAM and it can’t fix these issues, you may have to replace the RAM or contact the RAM manufacturer to get help. In addition, if you have two memory bars installed, please make sure they can work together.

Then, you need to check hard drive and fix errors. Please refer to this post: How to Check Hard Drive and Fix the Error? Solutions Are Here!

Fix 2. Uninstall Applications and Updates

Some users report that the BAD_SYSTEM_CONFIG_INFO error appears after they install a new application or Windows update. In this case, the reasonable cause should be incompatibility problem. So, uninstalling the problematic application or update may solve this problem.

How to uninstall applications and Windows updates: 

• Open File Explorer.
• Right click on This PC and choose Properties.
• Click Control Panel Home at upper left corner of the new pop-up window.
• Select Programs and Features in the next pop-up window.
• Right click an application and click Uninstall.
• In the same window, click View installed updates.
• Right click a problematic update to uninstall.

Fix 3. Update Drivers

• Press “Windows + X” keys and select Device Manager in the pop-up menu.
• Expand directory and select Update driver. Sometimes, the problematic driver will be displayed. But if not, you should especially try updating drivers for hard drives, USB, and other important devices.
• Select Search automatically for updated driver software in the pop-up window.

Tip: If Windows can’t find a new driver, users can find a driver on the device manufacturer’s website and follow its instruction to perform operation.

Surely, there are some users who report that the BAD_SYSTEM_CONFIG_INFO error occurs after they update to unsuitable drivers. If so, users can uninstall device to fix this problem.

Fix 4. Use BCDEdit Command

Windows 10 bad system config info error may occur due to incorrect system configuration like improper number of processors and wrong memory amount value. Some users report that the computer will overheat if the number of processors is very large, which will cause BAD_SYSTEM_CONFIG_INFO error sequentially.

Besides, some users also report that the abnormal value (usually it is too small) of memory amount will prevent computer to boot up. Fortunately, the two problems can be solved by bcdedit commands (even if the computer can’t boot into safe mode). Here is the tutorial: 

Step 1: Enter WinRE. Navigate to Troubleshoot > Advanced options > Command Prompt.

Step 2: Input the following two command lines (each command line is followed by pressing Enter key):

• bcdedit/deletevalue {default} numproc
• bcdedit/deletevalue {default} truncatememory

Step 3: Close the Command Prompt window and try rebooting computer to see whether it is OK.

Fix 5. Fix Windows Registry

Windows registry is an important database in Microsoft Windows for storing settings information of system and application. The various parameters stored in registry control directly the startup of Windows, the loading of hardware drivers, and the operation of some Windows applications.

Therefore, some registry issues can also cause bad system config info error. And usually, this registry issue can be repaired through command lines.

Here is a tutorial for solving bad system config info Windows 11/10 error caused by corrupted registry.

Step 1: Enter WinRE and navigate to Troubleshoot > Advanced options > Command Prompt.

Step 2: Execute the following commands one by one.

• CD C:WindowsSystem32config
• ren C:WindowsSystem32configDEFAULT DEFAULT.old
• ren C:WindowsSystem32configSAM SAM.old
• ren CWindowsSystem32configSECURITY SECURITY.old
• ren C:WindowsSystem32configSOFTWARE SOFTWARE.old
• ren C:WindowsSystem32configSYSTEM SYSTEM.old
• copy C:WindowsSystem32configRegBackDEFAULT C:WindowsSystem32config
• copy C:WindowsSystem32configRegBackSAM C:WindowsSystem32config
• copy C:WindowsSystem32configRegBackSECURITY C:WindowsSystem32config
• copy C:WindowsSystem32configRegBackSYSTEM C:WindowsSystem32config
• copy C:WindowsSystem32configRegBackSOFTWARE C:WindowsSystem32config

The cd and ren command lines will enter WindowsSystem32config and rename folders under it. Thus, Windows can’t use them anymore and users can restore them later (in system restore) if necessary. The copy command lines will copy the files in RegBack to config. In other words, these command lines will replace the old registry entry files with the registry backup.

If these command lines don’t work, users can type “notepad.exe” to open this program. Then click File and Open. And then, navigate to boot system > Windows > System32 > config. Display all files and rename them by just adding a symbol in case these files need to be restored. Then go to RegBack folder to copy all files from it and paste them to config folder.

Step 3: Close the Command Prompt and restart computer to see whether bad system config info error is solved.

Fix 6. Bootrec Command

If the BCD files get corrupted, bad system config info error may also occur. Bootrec.exe is a computer program file that can be used in WinRE Command Prompt to solve and repair Master Boot Record (MBR) issue, boot sector issue, and Boot Configuration Data storage issue. But this tool requires you to enter WinPE. 

Here is the tutorial.

Step 1: Enter WinPE and open Command Prompt window.

Step 2: Execute the following command lines one by one.

• bootrec /fixmbr
• bootrec /fixboot
• bootrec /rebuildbcd

Fix 7. System Restore or Reset Computer

If the previous methods can’t solve the bad system config info error, users can perform system restore or computer reset to solve Windows 10 bad system config info error.

However, the bad system config info error may cause data loss, so users should recover and backup important files in advance. Aiming to recover data when computer can’t boot, MiniTool Partition Wizard is recommended.

Here is a tutorial for recovering data when computer can’t boot.

Step 1: Make a bootable disk of MiniTool Partition Wizard.

Buy MiniTool Partition Wizard and launch it on a normal running computer to get its main interface. And then click Bootable Media on the toolbar.

Click WinPE-based media with MiniTool plug-in. And then choose the media destination.

Step 2: Set in the Firmware to make the computer boot from the disk containing the burnt boot.iso file.

Step 3: Recover data on system partition to other data partitions.

When the computer is booted up by the bootable disk, MiniTool Partition Wizard will open automatically after a few seconds. Then, click Data Recovery.

Choose logical drive E (the original boot partition C) and then click Scan.

Step 4: Find the files that need to be recovered and then click Save button.

Here is a tutorial for system restore.

Step 1: Enter WinRE and navigate to Troubleshoot > Advanced options > System Restore.

Step 2: Follow the wizard the perform system restore. But please note that Show more restore points should be selected if users don’t see any suitable system restore point.

Click Easily Fix: Windows 10 System Restore Stuck (Focus on 2 Cases) for some help if system restore process is not smooth.

If users disable system protection feature and didn’t create a system restore point manually, they may find that there is no system restore point. If that happens, please consider resetting this PC.

Here is a tutorial for resetting PC.

Step 1: Enter WinRE and navigate to Troubleshoot > Rest this PC.

Step 2: Follow the wizard to reset PC, but please select Keep my files option.

Click 3 Ways to Fix Windows 10 Reset Stuck at 1/66/99% Black Screen for some help if the computer reset process is not smooth.

If the computer can boot up after system restore or reset this PC, please check whether the important files still exist. If the files are not there, users can refer to the above steps to retrieve them. However, if the bad system config info error still occurs after resetting PC, users should consider hardware problems.

Here are 7 solutions to bad system config info error. These solutions are explained step by step and some of them are illustrated with pictures. Click to Tweet

Bottom Line

The above seven ways can solve bad system config info errors caused by most common reasons. But if you have any other solutions, please leave a comment below for sharing. Likewise, if you have problems in performing the above solutions, please leave a comment for discussion.

Surely, if you have problems in data recovery or backup, please leave a comment or email [email protected] to for help.

Bad System Config Info FAQ