Solved Dual boot not working both OS useable, no boot manager


First let me say thanks to everyone helping. Now, I've 4 pics for you this time. Number one, I just pasted the address of the EFI file into File Explorer, I really didn't expected it to work, and as guessed it said C:Efi does not exist. 2. Same as #1, except this was pulled from a cmd line inside of the recovery. I was looking on the Microsoft Support site and someone posted that they did something with the EFI folder and fixed the same problem I have, of course I don't know that for sure. 3. Again taken inside recovery, trying bootrec /rebuildbcd, this says there is no operating system installed.
#4. @jbcarreon123 this pic is for you. I tried the slmgr suggestion, cmd says that''s not a command.
@SIW2 Are you talking about the output pic in post #17? I double checked that is the top of the window. The pic not numbered, is that what you want?
cantEFI.jpg no EFI.jpg no os.jpg slmgr.jpg
 

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The bootmgr info is missing from your bcdedit output screenshot. that is the important bit.

You can t see it because your cmd screen height buffer is too small.

do this at admin cmd prompt

bcdedit >c:\bcdout.txt

then the details will be in c:\bcdout.txt

Or you can make the buffer bigger

rt click the top of cmd window, select properties and change the numbers

cmd-scrrenbuffer.jpg
 
Last edited:

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The bootmgr info is missing from your bcdedit output screenshot. that is the important bit.

You can t see it because your cmd screen height buffer is too small.

do this at admin cmd prompt

bcdedit >c:\bcdout.txt

then the details will be in c:\bcdout.txt

Or you can make the buffer bigger

rt click the top of cmd window, select properties and change the numbers
Ok, thanks for the guide, My buffer height is 9001 and window size height is 30. Again the cmd you gave me is listed as not a recognized as a cmd. Here is the output from bcdedit, as you can see this is the top. I would like to to the output as I would like to see it also.

Looking at some of the other threads here, I noticed there was a tutorial on dual booting, the author said that we needed to change the name of 11 during install. I didn't notice that it was still labeled 10 until after I got it installed and doing a set up, then I changed it. Could that be causing a problem?

bcdout 1.png
 
Last edited:

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10/11 dual boot
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10/11 dual boot
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Again the cmd you gave me is listed as not a recognized as a cmd.

You didnt enter the cmd I gave you.

There should be a space between bcdedit and >c:\bcdout.txt

Exactly as I posted previously
 

My Computers My Computers

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    Win7,Win11i7-97002x16gb 3600mhz
    OS
    Win7,Win11
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    i7-9700
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x16gb 3600mhz
    Monitor(s) Displays
    benq gw2480
    PSU
    bequiet pure power 11 400CM
    Cooling
    cryorig m9i
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    win7,win11i5-84002x8gb 3200
    Operating System
    win7,win11
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    CPU
    i5-8400
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x8gb 3200
    PSU
    xfx pro 450
Like this:
C:\Users\User Name> bcdedit >C:\bcdout.txt
 

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I got it going, YEAH!!!! What I did, I reinstalled 11, when restarting I got the boot mgr screen. I chooose 11, and it failed. So I restarted, clicked settingsOn the sign screen, then turned off the setting for "signed drivers". Then it worked. I haven''t rebooted yet but I think I can get it from here.

Thank you so much to everyone that helped. especially @jcbarron123, @SIW2, because of the patientce they showed, the intelligence they shared, and just being good guys all around.
 

My Computer My Computer

At a glance

10/11 dual boot
OS
10/11 dual boot
Computer type
Laptop
Manufacturer/Model
Dell Inspirion 3795
Mouse
wired
Internet Speed
1Gig
Browser
Firefox/Chrome

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