BAD_SYSTEM_CONFIG_INFO usually means the SYSTEM registry hive is corrupted or missing required registry keys or values.
Try these steps in order:
- Check free disk space Low free space can prevent Windows from working normally. A good target is to keep at least 10% to 15% free space on the system drive.
- Try Safe Mode, then restart normally If Windows can enter Safe Mode, restart normally afterward. If that does not fix it, the registry damage is likely more extensive.
- Use System Restore In Windows Recovery Environment, go to Troubleshoot > Advanced options > System Restore and restore to a point from before the problem started.
- Run DISM, then SFC
Open an elevated Command Prompt and run:
Important:DISM.exe /Online /Cleanup-image /Restorehealth sfc /scannow- Run DISM first, then SFC.
- Do not close the Command Prompt while
sfc /scannowis still running. - If SFC says it could not perform the requested operation, run it in Safe Mode.
- Check Event Viewer if Windows becomes bootable Look in the System log for registry-related errors that identify a specific hive or key.
- If recovery still fails, use Windows recovery options
Try these in order:
- Reset this PC
- Use installation media to restore or reset the PC
- Reinstall Windows
- If the old HDD is failing, suspect hardware Intermittent disk detection or repeated boot corruption can indicate an underlying HDD/SSD problem. Replacing the failing drive and reinstalling or cloning to a healthy disk may be necessary.
- Bug Check 0x74: BAD_SYSTEM_CONFIG_INFO
- Windows stop error - 0x00000074 Bad System Config Info
- Use the System File Checker tool to repair missing or corrupted system files
- Bug check 0x7B: INACCESSIBLE_BOOT_DEVICE
- Lenovo T440 Boot Error: Bad System Config, HDD Detection Failure, and BCD Corruption - Microsoft Q&A