three Windows 11 installed . Can only boot from one in Dual-Multi boot startup menu.


G

gundobaldo66

Member
Local time
11:26 AM
Posts
62
OS
windows 11 Pro
I am on Windows 11 Home .

Currently I have three Windows 11 OS installed as follows :

Disk 1 GPT SATA drive 951 GB : Windows 11 Home on partition E:\

Disk 2 : GPT SSD drive : Windows 11 on partition C:\ and a 2nd Windows 11 on Partition H:\

The boot Partition is C:\ on Disk 2.

I’d like to be able to boot from the other 2 OS, because they contain data I want to retrieve, but I am unable to access them from the multi boot start up menu. I can only boot from C:\ on Disk 2.

I get a message that the other OS 's need to be repaired I can't understand why. Each disk has a system partition, which should allow to boot the OS .



How can I go about it?



Thanks

Ittiandro
 

My Computer

System One

  • OS
    windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 3000
    CPU
    12 Gen Intel core i5-12500 3,00 Ghz
    Memory
    16 GB
you may need to use 'recovery' in settings then 'boot from another device'
which should show you the the boot manager for each install that is on the system.

or .. you could use an alternative boot manager which would enable you to choose which install on the system you wish to boot to.

this is just a sample.
www.geckoandfly.com

6 Free Boot Managers - Dual Boot Into Windows And Linux

How to dual-boot Linux and Windows on the same hard disk? Typically a computer will have a single operating system installed on them, for those that want
www.geckoandfly.com www.geckoandfly.com

best of luck, Steve ..
 

My Computers

System One System Two

  • OS
    Win 11 24H2 Home
    Computer type
    PC/Desktop
    Manufacturer/Model
    HP 24" AiO
    CPU
    Ryzen 7 5825u
    Motherboard
    HP
    Memory
    64GB DDR4 3200
    Graphics Card(s)
    Ryzen 7 5825u
    Sound Card
    RealTek
    Monitor(s) Displays
    24" HP AiO
    Hard Drives
    1TB WD Blue SN580 M2 SSD Partitioned.
    2x 1TB USB HDD External Backup/Storage.
    Internet Speed
    1GB full fibre
    Browser
    Edge & Thunderbird
    Antivirus
    AVG Internet Security
    Other Info
    Mainly Open Source Software
  • Operating System
    Ubuntu 22.04.5 LTS
    Computer type
    Laptop
    Manufacturer/Model
    Dell 13" Latitude 2017
    CPU
    i5 7200u
    Motherboard
    Dell
    Memory
    16GB DDR4
    Graphics card(s)
    Intel
    Sound Card
    Intel
    Monitor(s) Displays
    13" Dell Laptop
    Hard Drives
    250GB Crucial 2.5" SSD
    Mouse
    Gerenic 3 button
    Internet Speed
    WiFi only
    Browser
    FireFox
    Antivirus
    ClamAV TK
    Other Info
    Mainly Open Source Software
Try EasyBCD. With it you can see what the current boot menu is. If the other Windows boots are not on the menu you can add them to it

Note EasyBCD is a free download for non-commercial use.

For example, I have the following boot menu:
Entry 1 has Windows 10 Pro booting from C:
Entry 2 has Windows 7 Home booting from E:

EasyBCD 2.4.webp
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 24H2
    Computer type
    Laptop
    Manufacturer/Model
    ASUS TUF Gaming A15 (2022)
    CPU
    AMD Ryzen 7 6800H with Radeon 680M GPU (486MB RAM)
    Memory
    Crucial DDR5-4800 (2400MHz) 32GB (2 x 16GB)
    Graphics Card(s)
    NVIDIA RTX 3060 Laptop (6GB RAM)
    Sound Card
    n/a
    Monitor(s) Displays
    15.6-inch
    Screen Resolution
    1920x1080 300Hz
    Hard Drives
    2 x Samsung 990 Evo Plus (2TB M.2 NVME SSD)
    PSU
    n/a
    Mouse
    Wireless Mouse M510
    Internet Speed
    2000Mbps/300Mbps
    Browser
    Firefox
    Antivirus
    Malwarebytes
  • Operating System
    Windows 11 Pro 24H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom build
    CPU
    AMD Ryzen 7 5700X3D
    Motherboard
    ASUS ROG Strix B550-F Gaming WiFi II
    Memory
    G.SKILL Flare X 32GB (2x16GB) DDR4
    Graphics card(s)
    ASUS ROG-STRIX-RTX3060TI-08G-V2-GAMING (RTX 3060-Ti, 8GB RAM)
    Monitor(s) Displays
    Samsung G50D IPS 27"
    Screen Resolution
    1440p/180Hz
    Hard Drives
    2TB XPG SX8200 Pro (M2. PCIe SSD) || 2TB Intel 660P (M2. PCIe SSD)
    PSU
    Corsair RM750x (750 watts)
    Case
    Cooler Master MasterCase 5
    Cooling
    Scythe Mugen 6
    Mouse
    Logitech M310 (MK540 keyboard/mouse combo)
    Keyboard
    Logitech K520 (MK540 keyboard/mouse combo)
    Internet Speed
    2000 Mbps down / 300 Mbps up
    Browser
    Firefox, Edge, Chrome
    Antivirus
    Malwarebytes (Premium)
    Other Info
    ASUS Blu-ray Burner BW-16D1HT (SATA) || Western Digital Easystore 20TB USB 3.0 external hard drive used with Acronis True Image 2025 backup software || HP OfficeJet Pro 6975 Printer/Scanner
gundobaldo66 said:
I get a message that the other OS 's need to be repaired I can't understand why
Click to expand...

So you can see all three Windows installations on the boot menu but can only boot to one? And the other two give you errors?
Is that a correct summary of your issue?

Please post a screenshot of Disk Management.
 

My Computers

System One System Two

  • OS
    Win 11 Pro 24H2 26100.4351
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    Intel® Core™ i7-14700F
    Motherboard
    ASUS TUF Z690-PLUS WIFI BIOS v4301
    Memory
    G.SKILL Ripjaws S5 Series 64GB (2 x 32GB) DDR5
    Graphics Card(s)
    MSI GeForce RTX 3060 Ventus 2X 12GB OC
    Sound Card
    Sound Blaster AE-5 Plus
    Monitor(s) Displays
    ASUS TUF Gaming 27" 2K HDR Gaming
    Screen Resolution
    2560 x 1440
    Hard Drives
    Samsung 990 Pro 1TB NVMe (Win 11 24H2)
    SK hynix P41 500GB NVMe (24H2 VHDX)
    SK hynix P41 2TB NVMe (x3)
    Crucial P3 Plus 4TB
    PSU
    Corsair RM850x Shift
    Case
    Antec Dark Phantom DP502 FLUX
    Cooling
    Noctua NH-U12A chromax.black + 7 Phantek T-30's
    Keyboard
    Logitech MK 320
    Mouse
    Razer Basilisk V3
    Internet Speed
    350Mbs
    Browser
    Firefox
    Antivirus
    Winows Security
    Other Info
    Windows 11 24H2 26100.4351 (VHDX)
    On System One (Dual Boot)
  • Operating System
    Win 11 Pro 24H2 26100.4351
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    Intel Core i7-11700F
    Motherboard
    Asus TUF Gaming Z590 Plus WiFi
    Memory
    64 GB DDR4
    Graphics card(s)
    EVGA GeForce RTX 2060
    Sound Card
    SoundBlaster Audigy Fx V2
    Monitor(s) Displays
    Samsung F27T350
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 980 Pro 1TB
    Samsung 970 EVO Plus 2TB
    Samsung 870 EVO 500GB SSD
    PSU
    Corsair HX750
    Case
    Cougar MX330-G Window
    Cooling
    Hyper 212 EVO
    Internet Speed
    350Mbps
    Browser
    Firefox
    Antivirus
    Windows Security

My Computers

System One System Two

  • OS
    Win7,Win11
    Computer type
    PC/Desktop
    CPU
    i5-9400
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x8gb 3200mhz
    Monitor(s) Displays
    benq gw2480
    PSU
    bequiet pure power 11 400CM
    Cooling
    cryorig m9i
  • Operating System
    win7,win11
    Computer type
    PC/Desktop
    CPU
    pentium g5400
    Motherboard
    gigabyte b365m ds3h
    Memory
    1x8gb 2400
    PSU
    xfx pro 450
Scott said:
So you can see all three Windows installations on the boot menu but can only boot to one? And the other two give you errors?
Is that a correct summary of your issue?

Please post a screenshot of Disk Management.
Click to expand...
I didn't have much success with EasyBcd an Dism.
I am posting screen shots of Computer Management and the Minitool Partition Wizard. THey shows Partition C;\ as the boot partition . This is correct, but I want to boot from E;\ on Disk 0 ( SATA HDD) and/or H;\ Disk 1 .SSD drive). Diskpart gives a message that I cannot make the select disks/partitions active because they are not fixed MBR disks. How do go about it? Thanks Ittiandro
 

Attachments

My Computer

System One

  • OS
    windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 3000
    CPU
    12 Gen Intel core i5-12500 3,00 Ghz
    Memory
    16 GB
Active marker is not used for booting windows from gpt disks. It is for bios booting from mbr disks.
 

My Computers

System One System Two

  • OS
    Win7,Win11
    Computer type
    PC/Desktop
    CPU
    i5-9400
    Motherboard
    gigabyte b365m ds3h
    Memory
    2x8gb 3200mhz
    Monitor(s) Displays
    benq gw2480
    PSU
    bequiet pure power 11 400CM
    Cooling
    cryorig m9i
  • Operating System
    win7,win11
    Computer type
    PC/Desktop
    CPU
    pentium g5400
    Motherboard
    gigabyte b365m ds3h
    Memory
    1x8gb 2400
    PSU
    xfx pro 450
SIW2 said:
Active marker is not used for booting windows from gpt disks. It is for bios booting from mbr disks.
Click to expand...
Then, how do I make the disk active ( bootable) with diskpart, if feasible at all? I believe It is possible to convert a disk from GPT to MBR, but all the partitions are wiped out. This would defeat my purpose, because I need the other OS partitions to retrieve data . How do I go about this? THanks
 

My Computer

System One

  • OS
    windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 3000
    CPU
    12 Gen Intel core i5-12500 3,00 Ghz
    Memory
    16 GB
OK, let’s say that I go ahead and convert the GPT disk to MBR and delete all volumes/partitions. accordingly Can I then reinstall on the newly converted MBR disk a previously backed-up OS drive image ( complete with all the data) instead of installing a fresh Windows 11? The BUP OS would be a Macrium or Aomei drive image . I want to make sure that won't lose the other OS in the process.
Thanks
 

My Computer

System One

  • OS
    windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 3000
    CPU
    12 Gen Intel core i5-12500 3,00 Ghz
    Memory
    16 GB
Great support. I'm still waiting, though, for some more hints,,if possible, after my last posts
 

My Computer

System One

  • OS
    windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 3000
    CPU
    12 Gen Intel core i5-12500 3,00 Ghz
    Memory
    16 GB
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