How to Remove the Windows 7 Boot Loader
If you want to remove Windows 7 from a dual-boot environment that includes Windows XP or an earlier version of Windows, follow these steps:
- Use Bootsect.exe to restore the Ntldr.exe program. To do this, type the following command,
where D:\ is the drive containing the Windows installation media.
D:\Boot\Bootsect.exe -NT52 All
After the computer restarts, it does not load the Windows Boot Manager program. Instead, Ntldr.exe loads and processes the Boot.ini file to start an earlier version of Windows. - If Windows 7 is not installed on the active partition, you can now delete or remove the partition where Windows 7 is installed.
Note You can follow these steps in any version of Windows. If you follow these steps in Windows Vista or Windows 7, run the commands from a command prompt that has elevated user rights. To do this, click Start, click Accessories, right-click the command prompt shortcut, and then click Run As Administrator.
In this tutorial:
- Configuring Startup and Troubleshooting Startup Issues
- What is New with Windows Startup
- Boot Configuration Data
- BCD Stores
- System Recovery
- Windows Boot Performance Diagnostics
- Understanding the Startup Process
- Power-on Self Test Phase
- Initial Startup Phase
- Initial Startup Phase for BIOS Computers
- Initial Startup Phase for EFI Computers
- Windows Boot Manager Phase
- Windows Boot Loader Phase
- Kernel Loading Phase
- Control Sets
- Values for the Start Registry Entry
- Value Descriptions for Type Entries
- Other Registry Entries in the Servicename Subkeys
- Session Manager
- Logon Phase
- Important Startup Files
- How to Configure Startup Settings
- How to Use the Startup And Recovery Dialog Box
- How to Use the System Configuration Tool
- How to Use BCDEdit
- How to Interpret BCDEdit Output
- How to Back Up and Restore Settings
- How to Change the Default Operating System Entry
- How to Change the Boot Menu Time-Out
- How to Change the Order of Boot Manager Menu Items
- How to Create an Entry for Another Operating System
- How to Remove a Boot Entry
- How to View and Update Global Debugger Settings
- How to Remove the Windows 7 Boot Loader
- How to Configure a User Account to Automatically Log On
- How to Disable the Windows Startup Sound
- How to Speed Up the Startup Process
- The Process of Troubleshooting Startup
- Startup Troubleshooting Before the Starting Windows Logo Appears
- How to Start the System Recovery Tools
- How to Run Startup Repair
- How to Use BootRec.exe
- How to Diagnose Hardware Problems
- How to Use System Restore
- How to Manually Repair the Boot Sector
- How to Manually Update the BCD Registry File
- How to Manually Replace Files
- How to Reinstall Windows
- Startup Troubleshooting After the Starting Windows Logo Appears
- How to Restore the Last Known Good Configuration
- How to Enable Boot Logging
- How to Start in Safe Mode
- How to Identify Failing Drivers and Services
- How to Analyze Startup Problems in Safe Mode
- Event Viewer (Eventvwr.msc)
- System Information
- Error Reporting Service
- How to Use Device Manager to View or Change Resources
- How to Analyze Boot Logs
- How to Roll Back Drivers
- How to Temporarily Disable a Service
- Troubleshooting Startup Problems After Logon
- How to Temporarily Disable Startup Applications and Processes
- How to Disable Startup Applications Using the Shift Key
- How to Disable Startup Programs Using the System Configuration Utility
- How to Disable Startup Applications Configured Using Group Policy or Logon Scripts
- How to Permanently Disable Startup Applications and Processes
- Manually Remove the Entry