How to Fix Blue Screen of Death in Windows 7

Content

What Cause Blue Screen of Death in Windows 7?

Cause 2: Hard disk failure. When there are bad sectors on hard drive, computer fails to read data from it and the operating system will fail to work as a result.

Cause 3: Additional devices. Blue Screen of death may also occur if we connect problematic devices to the PC.

Cause 4: Broken or loose hardware connection. Hardware failure may lead to errors while data is being processed at startup.

Cause 5: Computer gets infected with a virus. There may be something wrong with system files if the PC suffers from a virus.

Cause 6: System files are damaged or lost. Missing or damaged system files will stop the operating system from running.

Cause 7: Boot Configuration Data (BCD) is damaged or missing. BCD is a database for boot-time configuration data. If BCD is lost or corrupted, BCD will not be found when the PC boots.

How to Fix Blue Screen of Death in Windows 7?

Solution 1: Check the Hardware

If Blue Screen of Death still can’t be fixed in Windows 7, the hardware probably gets damaged.

If you have installed new hardware recently, it’s suggested to confirm again whether the hardware is installed correctly.

Solution 2: Uninstall Malware

Step 2: After entering safe mode, press “Win” + “R” key to open the “Run” window, type in: control. When the “Control Panel” pops up, click “Uninstall a program” under “Programs”. Then you can uninstall the malware.

Solution 3: Run Startup Repair

Step 2: In the “System Recovery Options” window, click “Startup Repair” and start to scan the PC. If there’re problems, they will be automatically repaired. Please restart the PC after the repair process completes.

Solution 4: Use SFC Command Line to Restore System Files

Step 2: In Command Prompt, type in: sfc /scannow. Press “Enter”. System File Checker will automatically scan and repair the damaged system file. Please restart the PC after the repair process completes.

Solution 5: Rebuild BCD

Step 2: In Command Prompt, type them in order: bootrec /fixmbr, bootrec /fixboot, bootrec /rebuildbcd. Press “Enter” after you type each command. After executing above commands, Windows system will be scanned and BCD will be rebuilt.

Solution 6: Check for Bad Sectors on Hard Drive

Step 2: While the tool is scanning, you can check for bad sectors via “Map”. See the picture below. It shows that there’re lots of bad sectors. Please read this page about how to repair bad sectors.

Solution 7: Process Last Known Good Configuration

The configuration that worked last time can be stored when Windows 7 starts and shuts down properly. Using last known good configuration can start the PC normally.

Solution 8: Reinstall Your System

Step 2: Download Windows 7 system and save the installation files to GHO folder on USB drive.

Step 3: Restart the PC. Change the boot order in BIOS setup and put “Removable Devices” as the first boot choice. Then boot the PC from bootable USB flash drive. Next, please follow the on-screen instructions to install the system.