How to Remove Windows Boot Manager

By Andrew Meer

Windows 8.1 features a Boot Manager that gives you the option to select from multiple operating systems at system startup, but the choice between manually selecting your OS or enduring a 30-second wait at every boot may not appeal to you, especially since removing your secondary operating system may not prevent Boot Manager from appearing. You can't actually remove Windows Boot Manager without affecting your Windows installation, but you can stop it from delaying your boot process by turning off the 30-second timeout value from the Startup and Recovery panel.

Step 1

Press “Win-X” to open the Power User menu, then click “System.” On the left side of the window, click “Advanced System Settings” to open the System Properties box.

Step 2

Click the “Advanced” tab, then click “Settings” under Startup and Recovery.

Step 3

Use the pull-down menu under Default Operating System to select your preferred OS.

Step 4

Uncheck the box next to “Time to Display List of Operating Systems” to prevent the Boot Manager from showing at computer startup. You can also enter zero seconds into the field next to “Time to Display List of Operating Systems” to achieve the same result. Alternately, to reduce the delay but still show Boot Manager, simply enter a number less than 30.

Step 5

Click “Apply,” then “OK” to save the changes. Your computer will now directly boot you into the OS that you set as the default the next time you start your computer.

Tips & Warnings

  • To show Boot Manager again, check the box next to “Time to Display List of Operating Systems” on the Startup and Recovery panel, or add a positive value into the field next to “Time to Display List of Operating Systems.”
  • You can also use the “bcdedit /set {bootmgr} displaybootmenu no” command (without quotes) on an elevated Command Prompt console to turn off the Windows Boot Manager at startup. You must, however, set your preferred operating system as the default from the Startup and Recovery panel before you attempt this. To open an elevated Command Prompt console, press “Win-X,” then select “Command Prompt (Admin)” on the Power User menu. If you want to bring back the Boot Manager, use the “bcdedit /set {bootmgr} displaybootmenu yes” command (without quotes).
  • Actually deleting the Windows Boot Manager requires a complete format of your computer's primary partition, which is not advisable under most circumstances.