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Windows 11 Installer

Summary​

Designed to upgrade Windows systems to the latest version. It can be used to:

  • Upgrade Windows 10 to Windows 11
  • Install Windows 11 feature updates (e.g., 21H2 → 22H2 → 23H2 → 24H2 → 25H2)

Supports multiple source types including HTTP/HTTPS URLs, local files, and network shares (UNC paths).

File Hash​

  • File Path: C:\ProgramData\_automation\app\windows-upgrader\windows-upgrader.exe
  • File Hash (SHA256): 54AF67BF1D9F862F0E91D2591EE2033074EF6151F2BB43E74292235BBF99BCC4
  • File Hash (MD5): DCF1763E3DED1B4AA04F97511EE5A2E2
  • File Path: C:\ProgramData\_automation\app\windows-upgrader\Check-ReservedPartition.ps1
  • File Hash (SHA256): DC034BC8A20D8E8CB41D5B737F1E31FC858C57385DE668369BAA825D470C9450
  • File Hash (MD5): 4A51DD45AB4E85DDFCA33D2F98875C7F

Notes:
• If the script is run without the NoReboot flag, it will automatically schedule itself to run again 30 minutes after the upgrade completes to perform validation.
• The Version and Uri parameters should not be used simultaneously. If both are provided, Uri will override Version.
• If no parameters are supplied, the machine will be upgraded to 24H2 by default.
• The Version parameter can be set to 24H2 or 25H2, depending on your requirement.
• When using the Version parameter, you do not need to host an ISO or ZIP file or supply the Uri.

Update Notices​

Update Notice: 8 December, 2025​

  • Introduced a new parameter Version
  • Currently supported versions are 24H2 and 25H2

Update Notice: 3 November, 2025​

  • Updated to support Windows 11
  • Updated to support UNC path
  • Updated to support Azure Blob Storage URLs with SAS tokens (must be a direct download URL)

Update Notice: 8 October, 2025​

  • The script has been updated to support local paths in the URI.
  • It now removes the installers and extracted files before running the installation.

Update Notice: 15 January, 2025​

The script has been updated to address the InsufficientSystemPartitionDiskSpaceHardblock issue.

Sample Run​

Example 1: Install Windows 11 24H2​

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Example 2: Install Windows 11 25H2 without restarting the computer​

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Example 3: Install Windows 11 from a custom URL​

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Dependencies​

User Parameters​

NameExampleRequiredDescription
Urihttps://my.repo.site/repo/Windows11.zipFalseA custom URI to either a local file or HTTP file that contains the target Windows 11 payload.
Version25H2FalseVersion to install; 24H2 or 25H2. Both Uri and Version parameters should not be used together.
Multipart1FalseSet to 1 if the custom URI is a multipart file in the format https://my.repo.site/repo/Windows11.zip.001
NoReboot1FalseSet to 1 to suppress rebooting the machine after the upgrade.
IgnoreCompat1FalseSet to 1 to ignore Windows 11 hardware/software requirements.

Output​

  • Script log