What To Do When Windows Installation Fails At 99%

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When you encounter a failed Windows installation (also known as a «blue screen of death» or BSoD), don’t panic. Here are some steps to help you troubleshoot and potentially recover:

Immediate Steps

• Power off your computer: Immediately turn off your computer to prevent any further damage.

• Disconnect peripherals: Disconnect any external devices, such as USB drives, keyboards, and mice.

Troubleshooting Steps

• Update BIOS: Ensure that your motherboard’s BIOS is up-to-date, as outdated BIOS can cause installation issues.

• Run the Windows Installation Wizard: Restart your computer and enter Safe Mode (F8 during boot) to run the Windows Installation Wizard.

• Reinstall Windows from a different source: Try reinstalling Windows from another USB drive or CD/DVD that you have prepared earlier.

• Check for hardware issues: Check if any hardware devices, such as sound cards or network adapters, are causing the installation failure.

Additional Troubleshooting Steps

• Run the System File Checker (SFC): Open Command Prompt and type «sfc /scannow» to scan for corrupted system files.

• Run the DISM (Deployment Image Servicing and Management) tool: Run «dism /online /cleanup-image /restorehealth» to detect and repair any system image issues.

• Check for disk errors: Run «chkdsk /f /r» to check and repair any disk errors.

• Reinstall Windows from a different language or region: Try reinstalling Windows in a different language or region to see if the issue is specific to one.

Recovery Options

• Try a different USB drive or CD/DVD: If you’ve tried another USB drive or CD/DVD, try using an alternative one.

• Use a bootable recovery disk: Create a bootable Windows 10/8/8.1 installation media (ISO) and use it to install Windows on your computer.

• Contact Microsoft Support: Reach out to Microsoft Support for further assistance, as they may be able to provide additional troubleshooting steps or recommend alternative solutions.

Preventing Future Issues

• Update drivers: Regularly update all system drivers, including hardware and software components.

• Run disk cleanup: Perform a disk cleanup regularly to remove temporary files and free up disk space.

• Avoid overloading your computer: Be careful not to overload your computer with too many resource-intensive applications or tasks.

By following these steps, you should be able to troubleshoot and potentially recover from failed Windows installations at 99%.