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When my computer screen flashed the INVALID_PROCESS_ATTACH_ATTEMPT BSOD, I knew I was up against a serious challenge. This error isn’t just a mere inconvenience; it’s a serious system alert indicating deep-rooted issues.

Drawing upon my previous experiences in solving various BSODs, I compiled various working fixes to tackle this error.

In this post, I’ll guide you through the effective solutions I discovered and applied.


INVALID_PROCESS_ATTACH_ATTEMPT is a BSOD error that signifies a process or thread critical to the system’s functioning is being mishandled.

It’s like an essential gear in a complex machine getting stuck or misused, forcing the entire system to halt for safety. Displaying the blue screen is a protective measure by Windows to prevent further damage to your system.


The root cause of this error generally involves complications with system processes. Common causes include:

  • Corrupted System Files: Damaged or missing system files can trigger this error.
  • Faulty Hardware: Particularly issues with RAM or hard drives.
  • Outdated or Incompatible Drivers: Drivers that aren’t up-to-date can cause compatibility issues.
  • Software Conflicts: Newly installed software or updates might conflict with existing system files.
  • Malware Infections: Viruses or malware can disrupt system processes, leading to the BSOD.


If you find it difficult to apply these troubleshooting solutions, try a BSOD repair tool.

1. Preliminary Checks

  • Restart Your PC
    • Save any open work.
    • Click the Start menu, select the power icon, and choose ‘Restart’.
    • After rebooting, check if the BSOD reappears.
  • Unplug and Plug the External Hardware
    • Shut down your PC.
    • Disconnect all external devices (USBs, external drives, etc.).
    • Restart your computer, then reconnect devices one at a time to identify any conflicts.

2. Restart Your PC into Automatic Repair Mode

Automatic Repair is a Windows feature designed to fix boot-related issues automatically.

  1. Fully power off your PC.
  2. Power on your PC and, as the Windows logo shows up, hold down the power button until the PC shuts off.
  3. Repeat this process twice. On the third start, Windows should boot into Automatic Repair Mode.
  4. Select Troubleshoot, then Advanced options.

If the initial method doesn’t work, use a bootable USB or DVD with Windows installation files:

  1. Insert the bootable USB or DVD into your device and restart it.
  2. When prompted with “Press any key to continue..”, press any key to access the Windows Setup window.
  3. Set your preferences by selecting the Language for installation, Time & Currency format, and Keyboard or input method. Click Next to continue.
  4. In the next window, choose Repair your computer at the bottom.
  5. Then, select Troubleshoot.troubleshoot option
  6. Proceed to Advanced options.advanced options under troubleshooter
  7. You’ll now be in Repair Mode, where you can access various troubleshooting options.

3. Apply Startup Repair Option

Startup Repair is a recovery tool that fixes certain system problems that might prevent Windows from starting.

  1. In the Advanced options menu, choose the Startup Repair option.startup repair option
  2. Your system will restart as part of this process.
  3. Select an account to continue with the repair. If you have multiple accounts, opt for the one that has administrative rights.choose an account to repair
  4. Enter the password for the selected account.enter account password
  5. Follow the on-screen instructions to complete the Startup Repair process.

4. Uninstall Recent Windows Updates

Sometimes, specific Windows updates can conflict with your system, leading to BSODs.

  1. While in Automatic Repair Mode, navigate to Advanced options and then select Uninstall Updates.uninstall updates option
  2. Choose either “Uninstall the latest quality update” or “Uninstall the latest feature update.”select update to uninstall
  3. Follow the on-screen prompts to proceed with the removal of the selected update.uninstall the latest update

5. Run SFC and DISM Commands

The System File Checker (SFC) and Deployment Image Servicing and Management (DISM) tools are used to repair corrupted system files in Windows.

  1. Open Command Prompt from the Advanced options.command prompt option
  2. Type sfc /scannow and press Enter.SFC Command
  3. Once the SFC scan completes, run the DISM tool by typing DISM /Online /Cleanup-Image /ScanHealth and pressing Enter.DISM command
  4. After the commands have been completed, restart your computer.

6. Restore Windows

Windows System Restore can help you revert your computer’s system files, programs, and registry settings to an earlier point.

  1. In the Advanced options, select System Restore.system restore option
  2. Click Next to initiate the process.begin system restore
  3. Choose a restore point from a time before the error occurred.select restore point
  4. Confirm your selection of the restore point and click Finish.confirm system restore
  5. Complete the restoration by following the on-screen instructions.

7. Reset Windows

Resetting Windows reinstalls the operating system, which can resolve deeper system issues causing the BSOD.

  1. In the Advanced options, select Reset this PC.Select Reset this PC
  2. Choose whether to keep your files or remove everything.Choose if you want to keep your files
  3. Decide on your preferred method of reinstalling Windows – either a Local or Cloud reinstall.Select how would you like to Reinstall Windows
  4. Proceed with the reset by following the on-screen instructions.Click the Reset button to Fix WORKER_THREAD_RETURNED_AT_BAD_IRQL
  5. After the reset, you’ll need to set up Windows, including reinstalling any necessary applications and configuring your settings.

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In this comprehensive guide, I have covered a range of methods to troubleshoot and resolve the INVALID_PROCESS_ATTACH_ATTEMPT BSOD in Windows. Starting with basic preliminary checks and moving through more complex solutions like System Restore and Windows Reset.

Feel free to share which fix worked for you in the comments below!

More about the topics: Troubleshooting, windows