How to Fix Startup Errors

Restore startup errors with the Windows installation CD.

Startup errors occur for a number of reasons, such as faulty software, a corrupt registry and bad drivers. Common startup error messages are "Invalid Partition Table," "NTLDR is missing" and "Windows could not start because the following file is missing or corrupt." Windows-based systems contain numerous features that allow you to troubleshoot startup issues. Utilizing the tools and software that came with your computer means that you don't have to install additional software to fix the error.

Things You'll Need

• Windows installation CD

Instructions

Run Windows XP CD

1. Place the Windows installation disc in the CD-ROM and restart your system. Press a key to boot the CD.

2. Press "Enter" once the welcome screen appears. Review the agreement and scroll to the bottom of the agreement. Press "F8."

3. Press "R" to restore the vital windows components and repair the startup error. Allow the process to finish.

Run the Windows Vista and 7 CD

1. Place the Windows installation CD in the CD-ROM and reboot your computer.

2. Press any key on the keyboard to start Windows from the CD.

3. Choose the language settings and select "Next."

4. Choose the system you want to repair and click "Next."

5. Click "Startup Repair" on the "System Recovery" menu. Allow the tool to repair the startup errors and reboot your system.

Open Windows Advanced Options

1. Reboot your system and press "F8" in succession, until the "Windows Advanced Option Menu" appears.

2. Select "Last Known Good Configuration..." Press "Enter."

3. Wait for the system to boot.

References

• Microsoft Support: Startup Repair: frequently asked questions
• Microsoft: How to Fix a Computer that Won't Start