You can have a computer that has more than one operating system installed, and Windows 10 will offer you a way to choose which operating system you want to boot up at startup.
By default Windows 10 offers you 30 seconds to choose which operating system you want to boot before it boots one up for you. You can adjust the timer on this to provide more time if you think you need it. Likewise, you can reduce it from the default 30 seconds if you prefer it to hurry up.
You can use the Advanced Startup Options screen, or several ways after you’ve booted up the Windows operating system already. This guide goes through the ways after you have Windows running.
Here’s what you need to change how long you get to see the list of operating systems on your computer’s display before Windows automatically chooses one for you.
How to Change Display OS Timeout in Startup and Recovery
You can change the time that the choice of operating system remains on your computers display from the Startup and Recovery section in Windows 10.
1. Open the Control Panel and then click on System from the list of all Control Panel items. To find out all the different ways you can open the Control Panel in Windows 10, see this tutorial: How to Open Control Panel in Windows 10
2. Click on the Advanced system settings link from the left pane of the System window.
3. Click on the Settings button from the Startup and Recovery section of System Properties.
4. Use the up and down arrows to change the time according to your needs where it gives you the Time to display list of operating systems in the System startup section.
5. Click on the OK button to save your settings and then close the windows.
How to Change Display OS Timeout in System Configuration (msconfig)
You can change the amount of time Windows takes to choose an operating system at boot from the System Configuration windows as well.
1. Press the Windows logo + R keys and then in the Run dialog type msconfig and click on the OK button.
2. From System Configuration, select the Boot tab and then select your operating system, timeout in seconds and check the box to make all of the boot settings permanent.
3. Click on the OK button at the bottom of the System Configuration window.
4. If your computer has BitLocker encryption running, you’ll need to confirm you want to proceed by clicking on the Yes button.
5. Click on the Yes button to confirm you want to make the changes to the Boot tab.
6. Click on the Restart button for the changes to take immediate effect or exit without restarting if you want Windows to make the changes the next time you boot up the computer.
Note: If you choose to restart your computer, make sure you save anything on your PC because it will reboot the computer immediately without giving you a chance to save.
How to Change Display OS Timeout in Command Prompt
You can change how long the computer waits before it boots an operating system in Windows 10 from the Command Prompt also.
1. Type CMD into the Cortana search field in the taskbar and then click on the link to Run as administrator to get the elevated version of the Command Prompt window open. To find out all the different ways you can open the elevated Command Prompt window in Windows 10, see the following tutorial: How to Open Elevated Command Prompt in Windows 10
2. From the command line, type the following command:
bcdedit /timeout (time) and change where it says (time) for the number of seconds you want to use. For example, bcdedit /timeout 20 would set the timer to be 20 seconds.
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