Dual boot

  1. Scramjet's Avatar
    Posts : 330
    Windows 10 Pro
       #1

    Dual boot


    Hi All,
    Been searching for a clear answer but haven't found one yet. A few days ago I installed Win11 Pro preview on a spare drive with Win10 Pro already on my main m.2 drive. All worked fine for dual booting. The next day I was having some bugs in Win10 with right-clicking on a desktop icon and waiting for the context menu to pop up. it would just keep spinning for 20 secs. plus I could not use the media creation tool to make a copy on a USB. So I decided to do a new install of Win10 Pro. I disconnected all other drives before doing so. Now of course I don't have the boot menu and even though my drive with Win11 Pro Preview installed on it is not showing the System Properties > Startup and Recovery.
    Is there a way to use a dual boot program that will actually pick up that there is another bootable drive connected to my computer? if not maybe I would have to do an over the top install of Win11 Pro Preview that is on my extra drive.
    Anyone ever have this scenario before and found a workaround?

    cheers
      My Computer

  2. NavyLCDR's Avatar
    Posts : 16,588
    Windows 11 Pro
       #2

    What drive letter is the Windows 11 partition assigned? Let's say it is E: drive. Open a command prompt with admin privileges ("Run as Administrator") and run:

    Code:
    bcdboot E:\Windows /d /addlast
    Change E: to whatever the actual drive letter for the Windows 11 partition is.

    Also make sure to run:
    Code:
    powercfg -h off
    on both Windows 10 and Windows 11. Hibernation and windows fast startup will interfere with dual booting and the above command will disable both.
      My Computer

  3. Scramjet's Avatar
    Posts : 330
    Windows 10 Pro
    Thread Starter
       #3

    Thanks for the reply. I will certainly try that and post back here.

    - - - Updated - - -
    @NavyLCDR Greatly appreciate your advice and it worked perfect. When I looked in the "start and Recovery" tab I was able to see both copies of Windows 10. On a restart I am prompt with Windows 10 on two volumes. works perfect.
    Although a question for you. When the system boots after the Windows logo before the option to select either OS I see a black screen with the cursor flashing in many different spots on the screen. Then after 10 secs it gives me the screen to select which volume I want and it loads that OS volume perfect. Is that normal for dual booting?
    I didn't get that when I originally installed the Win11 Preview I guess because I used EasyBCD software. I am thinking it was the culprit that caused the bug that would not allow me to use the Media Creation Tool and the bug for right-clicking a file folder or a desktop icon. to take forever to display the content menu. So I didn't want to install that again lol
    cheers
      My Computer


 

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