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

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.

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