Window 11 failed to start in Hyper-V after I deleted the ~.iso install file


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whale11

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Windows 10, Windows 11, Windows 7, Windows XP, Linux Mint
I have been running Windows 11 inHyper-V (under Windows 10) for some months. Last week it refused to load stating that is could not find the original ~.iso file I used to install Windows 11. I had deleted the file. I found another copy on the ~.iso file and restored it to the original location. Windows 11 virtual machine then loaded successfully.

Why does Windows need the original install ~.iso to load once it's installed?
 
Windows Build/Version
Windows 10 (21H2 - 19044.3086) Professional with Hyper-V tryping to re-start Windows 11 (22H2 - 22621.2428) Professional.

My Computer

System One

  • OS
    Windows 10, Windows 11, Windows 7, Windows XP, Linux Mint
    Computer type
    PC/Desktop
    Manufacturer/Model
    Own build around MSI motherboard with Ryzen-7 CPU
    CPU
    Ryzen 7 3700X
    Motherboard
    MSI B450 Gaming Max Plus
    Memory
    16GB
    Graphics Card(s)
    None
    Sound Card
    Terratec DMX 6Fire USB
whale11 said:
I have been running Windows 11 inHyper-V (under Windows 10) for some months. Last week it refused to load stating that is could not find the original ~.iso file I used to install Windows 11. I had deleted the file. I found another copy on the ~.iso file and restored it to the original location. Windows 11 virtual machine then loaded successfully.

Why does Windows need the original install ~.iso to load once it's installed?
Click to expand...
Answer is really simple - just remove the dvd from settings.

What you have done by not deleting it is equivalent to leaving a dvd drive with a dvd disk in.

1702137242107.png
 

My Computer

System One

  • OS
    Windows 11 Pro + Win11 Canary VM.
    Computer type
    Laptop
    Manufacturer/Model
    ASUS Zenbook 14
    CPU
    I9 13th gen i9-13900H 2.60 GHZ
    Motherboard
    Yep, Laptop has one.
    Memory
    16 GB soldered
    Graphics Card(s)
    Integrated Intel Iris XE
    Sound Card
    Realtek built in
    Monitor(s) Displays
    laptop OLED screen
    Screen Resolution
    2880x1800 touchscreen
    Hard Drives
    1 TB NVME SSD (only weakness is only one slot)
    PSU
    Internal + 65W thunderbolt USB4 charger
    Case
    Yep, got one
    Cooling
    Stella Artois (UK pint cans - 568 ml) - extra cost.
    Keyboard
    Built in UK keybd
    Mouse
    Bluetooth , wireless dongled, wired
    Internet Speed
    900 mbs (ethernet), wifi 6 typical 350-450 mb/s both up and down
    Browser
    Edge
    Antivirus
    Defender
    Other Info
    TPM 2.0, 2xUSB4 thunderbolt, 1xUsb3 (usb a), 1xUsb-c, hdmi out, 3.5 mm audio out/in combo, ASUS backlit trackpad (inc. switchable number pad)

    Macrium Reflect Home V8
    Office 365 Family (6 users each 1TB onedrive space)
    Hyper-V (a vm runs almost as fast as my older laptop)
OAT said:
It would not be required if you used Win 11 natively as a host OS.
But since you are running Win 10, many things need to be installed in order for the guest to run.
Rather than using more space, it re-creates on the fly a working OS by picking the pieces it needs from the .iso file.
When you shut down the VM, it flushes RAM and storage.
Click to expand...
I'm sorry this is not true at all.
It is not like a live linux OS at all.
Hyper-v boots from an iso, like it would from a dvd or usb drive, and installs PERMANENTLY in a virtual hard drive in exactly the same was as installing on a host drive.
 
Last edited:

My Computer

System One

  • OS
    Windows 11 Pro + Win11 Canary VM.
    Computer type
    Laptop
    Manufacturer/Model
    ASUS Zenbook 14
    CPU
    I9 13th gen i9-13900H 2.60 GHZ
    Motherboard
    Yep, Laptop has one.
    Memory
    16 GB soldered
    Graphics Card(s)
    Integrated Intel Iris XE
    Sound Card
    Realtek built in
    Monitor(s) Displays
    laptop OLED screen
    Screen Resolution
    2880x1800 touchscreen
    Hard Drives
    1 TB NVME SSD (only weakness is only one slot)
    PSU
    Internal + 65W thunderbolt USB4 charger
    Case
    Yep, got one
    Cooling
    Stella Artois (UK pint cans - 568 ml) - extra cost.
    Keyboard
    Built in UK keybd
    Mouse
    Bluetooth , wireless dongled, wired
    Internet Speed
    900 mbs (ethernet), wifi 6 typical 350-450 mb/s both up and down
    Browser
    Edge
    Antivirus
    Defender
    Other Info
    TPM 2.0, 2xUSB4 thunderbolt, 1xUsb3 (usb a), 1xUsb-c, hdmi out, 3.5 mm audio out/in combo, ASUS backlit trackpad (inc. switchable number pad)

    Macrium Reflect Home V8
    Office 365 Family (6 users each 1TB onedrive space)
    Hyper-V (a vm runs almost as fast as my older laptop)
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