Window 11 pro will install

OS Name Microsoft Windows 11 Pro
Version 10.0.26100 Build 26100
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name SPECIALFORCES
System Manufacturer Alienware
System Model Alienware 16X Aurora AC16251
System Type x64-based PC
System SKU 0D34
Processor Intel(R) Core(TM) Ultra 9 275HX, 2700 Mhz, 24 Core(s), 24 Logical Processor(s)
BIOS Version/Date Alienware 1.3.2, 6/23/2025
SMBIOS Version 3.8
Embedded Controller Version 0.00
BIOS Mode UEFI
BaseBoard Manufacturer Alienware
BaseBoard Product 087W9F
BaseBoard Version A00
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Elevation Required to View
Windows Directory C:\windows
System Directory C:\windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.26100.1"
User Name SpecialForces\drwh0
Time Zone Central Daylight Time
Installed Physical Memory (RAM) 64.0 GB
Total Physical Memory 63.5 GB
Available Physical Memory 45.1 GB
Total Virtual Memory 73.0 GB
Available Virtual Memory 53.8 GB
Page File Space 9.50 GB
Page File C:\pagefile.sys
Kernel DMA Protection On
Virtualization-based security Running
Virtualization-based security Required Security Properties Base Virtualization Support, Secure Boot, DMA Protection
Virtualization-based security Available Security Properties Base Virtualization Support, Secure Boot, DMA Protection, UEFI Code Readonly, SMM Security Mitigations 1.0, Mode Based Execution Control, APIC Virtualization
Virtualization-based security Services Configured Hypervisor enforced Code Integrity, Secure Launch
Virtualization-based security Services Running Hypervisor enforced Code Integrity
App Control for Business policy Enforced
App Control for Business user mode policy Audit
Automatic Device Encryption Support Elevation Required to View
A hypervisor has been detected. Features required for Hyper-V will not be displayed.

OS Name Microsoft Windows 11 Pro
Version 10.0.26100 Build 26100
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name SPECIALFORCES
System Manufacturer Alienware
System Model Alienware 16X Aurora AC16251
System Type x64-based PC
System SKU 0D34
Processor Intel(R) Core(TM) Ultra 9 275HX, 2700 Mhz, 24 Core(s), 24 Logical Processor(s)
BIOS Version/Date Alienware 1.3.2, 6/23/2025
SMBIOS Version 3.8
Embedded Controller Version 0.00
BIOS Mode UEFI
BaseBoard Manufacturer Alienware
BaseBoard Product 087W9F
BaseBoard Version A00
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Elevation Required to View
Windows Directory C:\windows
System Directory C:\windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.26100.1"
User Name SpecialForces\drwh0
Time Zone Central Daylight Time
Installed Physical Memory (RAM) 64.0 GB
Total Physical Memory 63.5 GB
Available Physical Memory 45.1 GB
Total Virtual Memory 73.0 GB
Available Virtual Memory 53.8 GB
Page File Space 9.50 GB
Page File C:\pagefile.sys
Kernel DMA Protection On
Virtualization-based security Running
Virtualization-based security Required Security Properties Base Virtualization Support, Secure Boot, DMA Protection
Virtualization-based security Available Security Properties Base Virtualization Support, Secure Boot, DMA Protection, UEFI Code Readonly, SMM Security Mitigations 1.0, Mode Based Execution Control, APIC Virtualization
Virtualization-based security Services Configured Hypervisor enforced Code Integrity, Secure Launch
Virtualization-based security Services Running Hypervisor enforced Code Integrity
App Control for Business policy Enforced
App Control for Business user mode policy Audit
Automatic Device Encryption Support Elevation Required to View
A hypervisor has been detected. Features required for Hyper-V will not be displayed.

It shouldn't be needed but try running the installer in compatibility mode for an earlier operating system (right click on the executable > properties > comptaibility) or run the program compatibility troubleshooter and it can help you with this.