6 Fixes: “BAD-SYSTEM-CONFIG-INFO” in Windows 10, 8, 7

If you meet the bad system config info error at Windows 10/8/7 startup, you can read this post to learn 6 methods, via which you can easily fix “bad_system_config_info” error.


By Emily / Updated on May 12, 2023

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“Bad system config info windows 10 on boot up!!!”

“I just installed Windows 10 and reboot it, however, I cannot boot it as usual, and I'm getting a bad system configuration error and it won't boot or let me restore. Is anyone else having this issue or know how to resolve it? Please help! Thanks a lot!”

Bad System Config Info Win10

What causes bad system config info?

Bad System Config Info is also known as the Blue Screen of Death (BSoD). It is a common boot issue on Windows 10/8/7 operating systems. When it occurs, Windows will fail to start up. And it can be caused by one of the following factors:

▶Corrupted driver files;

▶Boot configuration data corruption;

▶Malfunctioning system files;

▶Bad registry files;

▶Faulty hardware;

▶Incorrect system settings.

6 Fixes for "bad system config info error" in Windows 10

The bad system config error can result from diverse causes. Whatever the reason, we have collected 6 effective fixes that might help solve this issue. You can try them one by one until the issue gets fixed. Let’s get started.

Fix 1. Check your hardware/memory

The faulty hardware, like RAM or a bad hard drive, can trigger the bad system config info error. So, you can first check the computer hardware and memory. In this case, you can use Windows native tool-Memory Diagnostic to run memory tests on your Windows 10 PC.

Supposing your computer can restart successfully.

Step 1. Open Control Panel. Click on “System and Security” > “Administrative Tools”.

Step 2. Double-click the “Windows Memory Diagnostic” shortcut.

Step 3. Click the “Restart now and check problems”.

Then your computer will reboot in the Windows Memory Diagnostics environment, and the tests will kick in the Standard mode right away.

Windows Diagnostic Tool

As soon as the test completes, your PC will restart automatically, and you need to use the Event Viewer to see the test results to find out if there is something wrong with the memory.

Step 1. Open “Start”, input “eventvwr.exe” and press “Enter” to open “Event Viewer”.

Step 2. Expand the “Windows Logs” folder. Right-click “System”, and click on “Find”.

Step 3. Type “MemoryDiagnostics-Results”, and click the “Find Next”.

View Hardware Check Result

Step 4. Close the Find dialog. On the Event Viewer, double click the “MemoryDiagnostics-Results” source, and see the message.

If the result reads "The Windows Memory Diagnostic tested the computer's memory and detected no errors," then the hardware or memory should not be the culprit of the bad system config info. If some errors are reported, one of the RAM modules probably has problems and needs to be replaced.

Fix 2. Update drivers

If the disk driver is outdated, you might also meet the Bad System Config Info error. To resolve this, please update your drivers as often as possible to ensure all major components have the latest drivers.

Note: the following steps are based on the precondition that your PC can restart.

Step 1. Click “Start” button, type “device manager” in the “Search” file and press “Enter” to open the device manager.

Step 2. Expand the “Disk Driver” menu and right-click the target disk and select “Properties”.

Step 3. In the Properties window, access to “Driver” tab and click “Update Driver”.

Update Disk Driver

Step 4. The wizard will open and offer you two options:

▶To search online automatically

▶To browse to the driver software on your computer

Select and click on the option you want, to proceed further.

Fix 3. Check and repair hard disk errors

When the hard disk drive got damaged or corrupted, it may cause bad system config info error. And you can resolve it by checking and repairing hard disk errors via Command Prompt. If you cannot boot into Windows, you have to use Windows installation media to access CMD.

Step 1. Reboot your computer from the Windows installation DVD or CD.

Step 2. In the Welcome screen, click “Next” and then “Repair your computer”.

Step 3. Then click on “Troubleshoot” > “Advanced Options” > “Command Prompt”.

Access Cmd Win10

Step 4. In the elevated Command Prompt window type “chkdsk c: /f /r /x” and hit "Enter". (“c” represents the letter of the drive you want to check.)

Fix 4. Correct wrong system configuration

The bad system config info error might also be caused by incorrect system configuration like improper number of processors and wrong memory amount value. Fortunately, the two problems can be solved by bcdedit commands.

Step 1. Navigate to Command Prompt window.

Step 2. Input the following two command lines and each command should be followed by pressing Enter key.

▶bcdedit/deletevalue {default} numproc

▶bcdedit/deletevalue {default} truncatememory

Fix 5. Repair Windows Registry Files

To apply this bad system config info Windows 10 fix, you also need to use the Windows installation media to launch the Command Prompt.

Once you got the Command Prompt window opened, run the following commands in turn:

▶CD C:\Windows\System32\config

▶ren C:\Windows\System32\config\DEFAULT DEFAULT.old

▶ren C:\Windows\System32\config\SAM SAM.old

▶ren C:\Windows\System32\config\SECURITY SECURITY.old

▶ren C:\Windows\System32\config\SOFTWARE SOFTWARE.old

▶ren C:\Windows\System32\config\SYSTEM SYSTEM.old

Those commands will rename the folders and once this is done, Windows 10 won’t use them again.

Then type in these one by one in the given sequence:

▶copy C:\Windows\System32\config\RegBack\DEFAULT C:\Windows\System32\config\

▶copy C:\Windows\System32\config\RegBack\SAM C:\Windows\System32\config\

▶copy C:\Windows\System32\config\RegBack\SECURITY C:\Windows\System32\config\

▶copy C:\Windows\System32\config\RegBack\SYSTEM C:\Windows\System32\config\

▶copy C:\Windows\System32\config\RegBack\SOFTWARE C:\Windows\System32\config\

This process will copy the registry’s backup and replaces old files. At last, type “Exit” and hit on "enter" to close Command Prompt and restart your PC.

Fix 6. Repair BCD files or MBR

If the above fixes are not helpful for the stop code bad system config info at Windows startup, then you can try to fix BCD or MBR in case that they are damaged and trigger BSoD errors. For this to work, first access Command Prompt using the Windows installation media as you do above. Then, execute the below commands to rebuild BCD and repair MBR.

▶bootrec /repairbcd

▶bootrec /osscan

▶bootrec /repairmbr

At last, type in “exit” and reboot your computer for the changes to take effect.

If the Windows installation media is not available in your situation and you cannot get to the Command Prompt window, you can switch to AOMEI Partition Assistant Standard. This freeware enables you to create a bootable media to boot your computer with bad system config info error, and then rebuild MBR directly. Specific steps are listed as below:

Download Freeware Win 10/8.1/8/7/XP
Secure Download

Step 1. Insert a USB drive into a working Windows PC. Download, install and launch AOMEI Partition Assistant on that computer as well. Click "Tools" > “Make Bootable Media” on the main interface.

Make Bootable Media

Importance: back up files that you required in the USB drive because the operation will delete everything inside.

Step 2. Choose USB drive and click “Proceed”.

Choose Usb Drive

Step 3. Then wait for the process to complete. The bootable USB drive will contain the pre-installed AOMEI Partition Assistant Professional.


Step 4. Plug the bootable USB drive into the computer with boot problem, and change boot order in the BIOS setup to make it boot from the bootable USB device.

Change Order

Step 5. Once you log into the computer, the AOMEI Partition Assistant Professional will run automatically. Then you can make use of its “Rebuild MBR” function to fix the bad system config info issue on Windows PC. Right-click the system disk and select “Rebuild MBR”.

Rebuild System Disk Mbr

Step 6. Select the proper MBR type based on the current Windows operating system and click “OK”.

Choose Mbr Type

Step 7. Click “Apply” and then “Proceed” to execute the pending operation.


Apart from rebuilding damaged MBR, AOMEI Partition Assistant Professional also supports checking and fixing errors on the system partition. Right-click the C drive and select “Advanced”> “Check Partition”.

Check The C Partition

Final words

These are all effective bad system config info Windows 10 fixes we want to share with you. Hope you can solve this BSOD error successfully via one of them. Worth to mention, AOMEI Partition Assistant Professional helps you to evade the hassles of preparing Windows installation media and running complex commands to fix PC boot issues. If you want to repair Windows Server startup problems, you can try the Server Edition.

Emily · Staff Editor
Emily is an English editor of AOMEI Technology; she has a great passion for providing easy solutions for people to tackle with all disk or partition management problems. In addition to writing articles about disk/partition management, she also edits great tutorials on how to back up and restore disk for data security. In her spare time, she loves to learn computer skill to improve herself or stay with her family to enjoy a good day.