diff --git a/.pipelines/templates/e2e-arm64-template.yml b/.pipelines/templates/e2e-arm64-template.yml
index 4f649437a..3f5f3724c 100644
--- a/.pipelines/templates/e2e-arm64-template.yml
+++ b/.pipelines/templates/e2e-arm64-template.yml
@@ -37,10 +37,6 @@ parameters:
       - forceBuild
       - prebuilt
 
-  - name: osModifierBranch
-    type: string
-    default: "main"
-
   - name: baseImageArtifactStage
     type: string
     default: ""
@@ -67,7 +63,6 @@ stages:
       tridentArtifactName: trident-binaries
       codeCoverage: false
       tridentBuildOptions: ${{ parameters.tridentBuildOptions }}
-      osModifierBranch: ${{ parameters.osModifierBranch }}
       dependsOnStage: ${{ parameters.baseImageArtifactStage }}
       targetArchitecture: arm64
 
diff --git a/.pipelines/templates/e2e-template.yml b/.pipelines/templates/e2e-template.yml
index 6c041711f..a0654303a 100644
--- a/.pipelines/templates/e2e-template.yml
+++ b/.pipelines/templates/e2e-template.yml
@@ -77,10 +77,6 @@ parameters:
     type: number
     default: 3
 
-  - name: osModifierBranch
-    type: string
-    default: "main"
-
   - name: baremetalTestsEnabled
     type: boolean
     default: true
@@ -109,7 +105,6 @@ stages:
         tridentArtifactName: trident-binaries
         codeCoverage: false
         tridentBuildOptions: ${{ parameters.tridentBuildOptions }}
-        osModifierBranch: ${{ parameters.osModifierBranch }}
         dependsOnStage: ${{ parameters.baseImageArtifactStage }}
         targetArchitecture: amd64
 
@@ -129,7 +124,6 @@ stages:
   - ${{ if eq(parameters.stageType, 'ci') }}:
       - template: stages/validate_makefile/dev-build.yml
         parameters:
-          osModifierBranch: ${{ parameters.osModifierBranch }}
           ${{ if eq(parameters.stageType, 'ci') }}:
             # Run CodeQL for this in CI only
             runCodeql: true
@@ -370,7 +364,6 @@ stages:
       - template: stages/testing_functional/functional-testing.yml
         parameters:
           downloadPrebuiltImage: false
-          osModifierBranch: ${{ parameters.osModifierBranch }}
           dependsOnStage: ${{ parameters.baseImageArtifactStage }}
 
       # VM Testing (host, post_merge)
diff --git a/.pipelines/templates/stages/common_tasks/download-osmodifier.yml b/.pipelines/templates/stages/common_tasks/download-osmodifier.yml
deleted file mode 100644
index 0a6be3ced..000000000
--- a/.pipelines/templates/stages/common_tasks/download-osmodifier.yml
+++ /dev/null
@@ -1,48 +0,0 @@
-parameters:
-  - name: tridentSourceDirectory
-    type: string
-
-  - name: osModifierBuildType
-    displayName: OSModifier build type to download from osmodifier pipelines
-    type: string
-    values:
-      - dev
-      - preview
-    default: preview
-
-  - name: targetArchitecture
-    type: string
-    values:
-      - amd64
-      - arm64
-
-  - name: osModifierBranch
-    displayName: OSModifier branch to use for dev build type
-    type: string
-    default: "main"
-
-steps:
-  - ${{ if eq(parameters.osModifierBuildType, 'dev') }}:
-    - bash: |
-        set -ex
-        rm -rf azure-linux-image-tools
-        git clone --branch ${{ parameters.osModifierBranch }} https://github.com/microsoft/azure-linux-image-tools azure-linux-image-tools
-
-        mkdir -p artifacts
-        make artifacts/osmodifier
-      displayName: "Build OSModifier from ${{ parameters.osModifierBranch }}"
-      workingDirectory: ${{ parameters.tridentSourceDirectory }}
-      retryCountOnTaskFailure: 3
-
-  - ${{ if eq(parameters.osModifierBuildType, 'preview') }}:
-    - task: UniversalPackages@0
-      displayName: "Download OSModifier (preview - pinned version)"
-      inputs:
-        command: download
-        vstsFeed: polar/PolarCoreArtifacts
-        ${{ if eq(parameters.targetArchitecture, 'amd64') }}:
-          vstsFeedPackage: osmodifier_amd64_preview
-        ${{ if eq(parameters.targetArchitecture, 'arm64') }}:
-          vstsFeedPackage: osmodifier_arm64_preview
-        vstsPackageVersion: "1.1.0-preview.939023"
-        downloadDirectory: "${{ parameters.tridentSourceDirectory }}/artifacts"
diff --git a/.pipelines/templates/stages/testing_functional/functional-testing.yml b/.pipelines/templates/stages/testing_functional/functional-testing.yml
index 2c847909b..651e13afd 100644
--- a/.pipelines/templates/stages/testing_functional/functional-testing.yml
+++ b/.pipelines/templates/stages/testing_functional/functional-testing.yml
@@ -18,10 +18,6 @@ parameters:
     default: 5067 # [GITHUB]-trident-ci
     displayName: Where to download prebuilt image from
 
-  - name: osModifierBranch
-    type: string
-    default: "main"
-
   - name: dependsOnStage
     type: string
     default: ""
diff --git a/.pipelines/templates/stages/trident_rpms/build-source.yml b/.pipelines/templates/stages/trident_rpms/build-source.yml
index f8e2e407b..9f565f4c7 100644
--- a/.pipelines/templates/stages/trident_rpms/build-source.yml
+++ b/.pipelines/templates/stages/trident_rpms/build-source.yml
@@ -6,10 +6,6 @@ parameters:
     type: boolean
     default: true
 
-  - name: osModifierBranch
-    type: string
-    default: "main"
-
   - name: dependsOnStage
     type: string
     default: ""
@@ -20,14 +16,6 @@ parameters:
       - amd64
       - arm64
 
-  - name: osModifierBuildType
-    displayName: OSModifier build type to download from osmodifier pipelines
-    type: string
-    values:
-      - dev
-      - preview
-    default: preview
-
   - name: runCodeql
     type: boolean
     default: false
diff --git a/.pipelines/templates/stages/trident_rpms/trident-stage.yml b/.pipelines/templates/stages/trident_rpms/trident-stage.yml
index 92e7465ab..a311cb51d 100644
--- a/.pipelines/templates/stages/trident_rpms/trident-stage.yml
+++ b/.pipelines/templates/stages/trident_rpms/trident-stage.yml
@@ -32,10 +32,6 @@ parameters:
       - forceBuild
       - prebuilt
 
-  - name: osModifierBranch
-    type: string
-    default: "main"
-
   - name: dependsOnStage
     type: string
     default: ""
@@ -56,14 +52,8 @@ stages:
         parameters:
           tridentArtifactName: ${{ parameters.tridentArtifactName }}
           codeCoverage: ${{ parameters.codeCoverage }}
-          osModifierBranch: ${{ parameters.osModifierBranch }}
           dependsOnStage: ${{ parameters.dependsOnStage }}
           targetArchitecture: ${{ parameters.targetArchitecture }}
-          # trident-cicd-for-prism should run against the latest main build of osmodifier.
-          ${{ if eq(parameters.stageType, 'ci') }}:
-            osModifierBuildType: dev
-          ${{ else }}:
-            osModifierBuildType: preview
           ${{ if eq(parameters.stageType, 'ci') }}:
             # Run CodeQL for this in CI only
             runCodeql: true
diff --git a/.pipelines/templates/stages/validate_makefile/dev-build.yml b/.pipelines/templates/stages/validate_makefile/dev-build.yml
index 21420c9bb..9076475fa 100644
--- a/.pipelines/templates/stages/validate_makefile/dev-build.yml
+++ b/.pipelines/templates/stages/validate_makefile/dev-build.yml
@@ -1,8 +1,4 @@
 parameters:
-  - name: osModifierBranch
-    type: string
-    default: "main"
-
   - name: dependsOnStage
     type: string
     default: ""
diff --git a/.pipelines/templates/trident-platform-cicd-for-prism-template.yml b/.pipelines/templates/trident-platform-cicd-for-prism-template.yml
index 461afe453..67a6f854e 100644
--- a/.pipelines/templates/trident-platform-cicd-for-prism-template.yml
+++ b/.pipelines/templates/trident-platform-cicd-for-prism-template.yml
@@ -18,11 +18,6 @@ parameters:
     type: string
     default: "*.*.*"
 
-  - name: osModifierBranch
-    displayName: OSModifier branch to build from (if not main)
-    type: string
-    default: "main"
-
 stages:
     - template: stages/base_image_config/create-base-image-config-artifact.yml
     - template: e2e-template.yml
@@ -32,13 +27,11 @@ stages:
         tridentBuildOptions: forceBuild
         micBuildType: ${{ parameters.micBuildType }}
         micVersion: ${{ parameters.micVersion }}
-        osModifierBranch: ${{ parameters.osModifierBranch }}
         baseImageArtifactStage: CreateBaseImageConfig
     - template: e2e-arm64-template.yml
       parameters:
         stageType: ci
         tridentBuildOptions: forceBuild
-        osModifierBranch: ${{ parameters.osModifierBranch }}
         baseImageArtifactStage: CreateBaseImageConfig
         micBuildType: ${{ parameters.micBuildType }}
         micVersion: ${{ parameters.micVersion }}
diff --git a/.pipelines/trident-cicd-for-prism.yml b/.pipelines/trident-cicd-for-prism.yml
index 21bbfe387..cbd5e964d 100644
--- a/.pipelines/trident-cicd-for-prism.yml
+++ b/.pipelines/trident-cicd-for-prism.yml
@@ -13,11 +13,6 @@ parameters:
     type: string
     default: "*.*.*"
 
-  - name: osModifierBranch
-    displayName: OSModifier branch to use for dev build type
-    type: string
-    default: "main"
-
 schedules:
   - cron: "0 9 * * *" # avoid trident-prerelease time
     displayName: Daily build
@@ -57,4 +52,3 @@ extends:
         parameters:
           micBuildType: ${{ parameters.micBuildType }}
           micVersion: ${{ parameters.micVersion }}
-          osModifierBranch: ${{ parameters.osModifierBranch }}
diff --git a/crates/trident_api/src/error.rs b/crates/trident_api/src/error.rs
index 138606786..57aa13b16 100644
--- a/crates/trident_api/src/error.rs
+++ b/crates/trident_api/src/error.rs
@@ -30,10 +30,6 @@ pub enum ExecutionEnvironmentMisconfigurationError {
     #[error("Failed to run due to missing root privileges")]
     CheckRootPrivileges,
 
-    #[error("Failed to find OS Modifier binary at '{binary_path}' required by '{config}'")]
-    #[serde(rename = "find-os-modifier-binary")]
-    FindOSModifierBinary { binary_path: String, config: String },
-
     #[error("Failed to find required binary '{binary}'")]
     MissingBinary { binary: &'static str },
 
diff --git a/docs/Development/Building/Building.md b/docs/Development/Building/Building.md
index 7ec639809..dd4fc3563 100644
--- a/docs/Development/Building/Building.md
+++ b/docs/Development/Building/Building.md
@@ -38,52 +38,6 @@ make build
 
 The binary will be placed at `target/release/trident`.
 
-## Building OS Modifier
-
-Trident depends on `osmodifier`, a tool coming from the
-[Azure Linux Image Tools](https://github.com/microsoft/azure-linux-image-tools)
-repository, to perform OS image modifications.
-
-To build `osmodifier` locally, run:
-
-```bash
-# Clone the Azure Linux Image Tools repository 
-git clone https://github.com/microsoft/azure-linux-image-tools.git
-
-# Run the osmodifier make target
-make -C ./azure-linux-image-tools/toolkit go-osmodifier
-
-# Copy the built binary to the artifacts directory
-cp ./azure-linux-image-tools/toolkit/out/tools/osmodifier artifacts/osmodifier
-
-# Clean up
-rm -rf ./azure-linux-image-tools
-```
-
-Alternatively, you can build `osmodifier` on Azure Linux 3 using Docker:
-
-```bash
-# Clone the Azure Linux Image Tools repository 
-git clone https://github.com/microsoft/azure-linux-image-tools.git
-
-# Build osmodifier inside an Azure Linux 3 container
-docker build -t trident/osmodifier-build:latest \
-    -f packaging/docker/Dockerfile-osmodifier.azl3 \
-    .
-mkdir -p artifacts
-ID=$(docker create trident/osmodifier-build:latest)
-docker cp -q $ID:/work/azure-linux-image-tools/toolkit/out/tools/osmodifier artifacts/osmodifier
-docker rm -v $ID
-```
-
-:::info
-
-`osmodifier` is a portable Golang binary, so you can build it on any Linux
-distribution and use it on Azure Linux 3, but it is still recommended to build it
-on the same OS to avoid any potential compatibility issues.
-
-:::
-
 ## Building RPMs for Azure Linux
 
 ```bash
diff --git a/docs/Development/Building/Dependencies.md b/docs/Development/Building/Dependencies.md
index d1fc9d00a..a36ad1ea9 100644
--- a/docs/Development/Building/Dependencies.md
+++ b/docs/Development/Building/Dependencies.md
@@ -11,7 +11,7 @@ Trident's dependencies.
 ### Compilers
 
 - Rust: latest stable
-- Go: 1.25+ (for osmodifier)
+- Go: 1.25+
 
 ### Packages
 
diff --git a/docs/Development/Testing/E2E-Tests.md b/docs/Development/Testing/E2E-Tests.md
index 4c5a5c537..4debdf097 100644
--- a/docs/Development/Testing/E2E-Tests.md
+++ b/docs/Development/Testing/E2E-Tests.md
@@ -94,12 +94,6 @@ make bin/isopatch        # Injects files into ISOs
 make bin/rcp-agent       # Remote control plane agent
 ```
 
-### 3. Build osmodifier
-
-```bash
-make artifacts/osmodifier
-```
-
 ### 4. Build Trident RPMs
 
 The test images include Trident packages built from your local tree. This step
@@ -111,7 +105,7 @@ make bin/trident-rpms.tar.gz
 ```
 
 This requires Docker and uses the Trident packaging Dockerfile to produce
-RPMs from your compiled binary and osmodifier.
+RPMs from your compiled binary.
 
 ### 5. Generate SSH Keys
 
diff --git a/docs/Development/Testing/Functional-Tests.md b/docs/Development/Testing/Functional-Tests.md
index f024155e9..2a4d79b99 100644
--- a/docs/Development/Testing/Functional-Tests.md
+++ b/docs/Development/Testing/Functional-Tests.md
@@ -69,9 +69,6 @@ can build them individually if needed:
 # Build virtdeploy (VM management tool)
 make bin/virtdeploy
 
-# Build osmodifier
-make artifacts/osmodifier
-
 # Build the functional test binaries with code coverage instrumentation
 make build-functional-test-cc
 
diff --git a/packaging/docker/Dockerfile-osmodifier.azl3 b/packaging/docker/Dockerfile-osmodifier.azl3
deleted file mode 100644
index 40d5e2011..000000000
--- a/packaging/docker/Dockerfile-osmodifier.azl3
+++ /dev/null
@@ -1,20 +0,0 @@
-### This file is primarily used to build Trident RPMs for local testing.
-
-FROM mcr.microsoft.com/azurelinux/base/core:3.0
-ARG GOLANG_VERSION=1.25.1
-ARG IMAGE_TOOLS_BRANCH=main
-
-RUN tdnf install -y make awk util-linux git python3 ca-certificates
-
-WORKDIR /work
-
-RUN \
-    tdnf list golang && \
-    tdnf install golang-$(tdnf list golang | grep $GOLANG_VERSION | awk '{print $2}' | tail -n 1) -y
-
-RUN \
-    git clone --depth 1 --branch $IMAGE_TOOLS_BRANCH https://github.com/microsoft/azure-linux-image-tools && \
-    mkdir -p ./azure-linux-image-tools/artifacts && \
-    mkdir -p ./azure-linux-image-tools/SPECS && \
-    rm $(find ./azure-linux-image-tools -name '*_test.go') && \
-    make -C ./azure-linux-image-tools/toolkit go-osmodifier REBUILD_TOOLS=y SKIP_LICENSE_SCAN=y GOEXPERIMENT=nosystemcrypto
diff --git a/tools/cmd/netlaunch/main.go b/tools/cmd/netlaunch/main.go
index 3a6513577..a3df2ff7f 100644
--- a/tools/cmd/netlaunch/main.go
+++ b/tools/cmd/netlaunch/main.go
@@ -18,25 +18,24 @@ import (
 )
 
 var (
-	netlaunchConfigFile  string
-	tridentConfigFile    string
-	iso                  string
-	logstream            bool
-	listenPort           uint16
-	remoteAddressFile    string
-	serveFolder          string
-	maxFailures          uint
-	traceFile            string
-	forceColor           bool
-	waitForProvisioned   bool
-	onlyPrintExitCode    bool
-	secureBoot           bool
-	signingCert          string
-	rcpMode              string
-	tridentBinaryPath    string
-	launcherBinaryPath   string
-	osmodifierBinaryPath string
-	streamImage          bool
+	netlaunchConfigFile string
+	tridentConfigFile   string
+	iso                 string
+	logstream           bool
+	listenPort          uint16
+	remoteAddressFile   string
+	serveFolder         string
+	maxFailures         uint
+	traceFile           string
+	forceColor          bool
+	waitForProvisioned  bool
+	onlyPrintExitCode   bool
+	secureBoot          bool
+	signingCert         string
+	rcpMode             string
+	tridentBinaryPath   string
+	launcherBinaryPath  string
+	streamImage         bool
 )
 
 const (
@@ -82,9 +81,6 @@ var rootCmd = &cobra.Command{
 			if tridentBinaryPath != "" {
 				log.Fatal("Trident binary path specified without RCP mode")
 			}
-			if osmodifierBinaryPath != "" {
-				log.Fatal("Osmodifier binary path specified without RCP mode")
-			}
 			if streamImage {
 				log.Fatal("Stream image specified without RCP mode")
 			}
@@ -131,10 +127,6 @@ var rootCmd = &cobra.Command{
 				config.Rcp.LocalLauncherPath = &launcherBinaryPath
 			}
 
-			if osmodifierBinaryPath != "" {
-				config.Rcp.LocalOsmodifierPath = &osmodifierBinaryPath
-			}
-
 			config.Rcp.UseStreamImage = streamImage
 		}
 
@@ -174,7 +166,6 @@ func init() {
 	rootCmd.PersistentFlags().StringVarP(&rcpMode, "rcp-agent-mode", "", "", "RCP agent mode to use (grpc|cli). If not specified, the rcp-agent is not used.")
 	rootCmd.PersistentFlags().StringVarP(&tridentBinaryPath, "trident-binary", "", "", "Optional path to Trident binary to be copied into the VM, requires RCP mode.")
 	rootCmd.PersistentFlags().StringVarP(&launcherBinaryPath, "launcher-binary", "", "", "Optional path to Launcher binary to be copied into the VM, requires RCP mode.")
-	rootCmd.PersistentFlags().StringVarP(&osmodifierBinaryPath, "osmodifier-binary", "", "", "Optional path to Osmodifier binary to be copied into the VM, requires RCP mode.")
 	rootCmd.PersistentFlags().BoolVarP(&streamImage, "stream-image", "", false, "Use stream image for installation instead of the default method, requires RCP mode.")
 	rootCmd.Flags().StringVarP(&iso, "iso", "i", "", "ISO for Netlaunch testing")
 	rootCmd.MarkFlagRequired("iso-template")
diff --git a/tools/pkg/netlaunch/config.go b/tools/pkg/netlaunch/config.go
index fa4cf9e48..45089cbd0 100644
--- a/tools/pkg/netlaunch/config.go
+++ b/tools/pkg/netlaunch/config.go
@@ -84,10 +84,6 @@ type RcpConfiguration struct {
 	// If not specified, no Trident binary will be copied.
 	LocalTridentPath *string `yaml:"localTridentPath,omitempty"`
 
-	// An optional path to a local osmodifier binary to copy into the remote host.
-	// If not specified, no Osmodifier binary will be copied.
-	LocalOsmodifierPath *string `yaml:"localOsmodifierPath,omitempty"`
-
 	// An optional path to a local launcher binary to copy into the remote host.
 	// If not specified, no launcher binary will be copied.
 	LocalLauncherPath *string `yaml:"localLauncherPath,omitempty"`
diff --git a/tools/pkg/netlaunch/netlaunch.go b/tools/pkg/netlaunch/netlaunch.go
index b926e65eb..7e6ad0173 100644
--- a/tools/pkg/netlaunch/netlaunch.go
+++ b/tools/pkg/netlaunch/netlaunch.go
@@ -398,9 +398,6 @@ func injectRcpAgentConfig(
 	if err := registerNamedRcpFile(rcpAgentConfBuilder, "trident", "/usr/bin/trident", localRcpConf.LocalTridentPath); err != nil {
 		return err
 	}
-	if err := registerNamedRcpFile(rcpAgentConfBuilder, "osmodifier", "/usr/bin/osmodifier", localRcpConf.LocalOsmodifierPath); err != nil {
-		return err
-	}
 	if err := registerNamedRcpFile(rcpAgentConfBuilder, "launcher", "/usr/bin/launcher", localRcpConf.LocalLauncherPath); err != nil {
 		return err
 	}