diff --git a/src/Agent.Sdk/Knob/AgentKnobs.cs b/src/Agent.Sdk/Knob/AgentKnobs.cs
index 71eba87cd1..a3c31740a3 100644
--- a/src/Agent.Sdk/Knob/AgentKnobs.cs
+++ b/src/Agent.Sdk/Knob/AgentKnobs.cs
@@ -786,5 +786,13 @@ public class AgentKnobs
             "Timeout for channel communication between agent listener and worker processes.",
             new EnvironmentKnobSource("PIPELINE_ARTIFACT_ASSOCIATE_TIMEOUT"),
             new BuiltInDefaultKnobSource("900")); // 15 * 60 - Setting the timeout to 15 minutes to account for slowness from azure storage and retries.
+        
+        public static readonly Knob RollbackToDefaultTfExe = new Knob(
+            nameof(RollbackToDefaultTfExe),
+            "If true, the agent will install the default versions of TF, vstsom",
+            new RuntimeKnobSource("ROLLBACK_TO_DEFAULT_TF_EXE"),
+            new EnvironmentKnobSource("ROLLBACK_TO_DEFAULT_TF_EXE"),
+            new PipelineFeatureSource("RollbackToDefaultTfExe"),
+            new BuiltInDefaultKnobSource("false"));
     }
 }
diff --git a/src/Agent.Worker/TfManager.cs b/src/Agent.Worker/TfManager.cs
index 0dc7f33e84..d1f12da1ca 100644
--- a/src/Agent.Worker/TfManager.cs
+++ b/src/Agent.Worker/TfManager.cs
@@ -6,6 +6,7 @@
 using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
+using Agent.Sdk.Knob;
 
 namespace Microsoft.VisualStudio.Services.Agent.Worker
 {
@@ -34,7 +35,17 @@ public static async Task DownloadLegacyTfToolsAsync(IExecutionContext executionC
 
             if (!Directory.Exists(tfLegacyExternalsPath))
             {
-                const string tfDownloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/m153_47c0856d/vstsom.zip";
+                string tfDownloadUrl;
+                if (!AgentKnobs.RollbackToDefaultTfExe.GetValue(executionContext).AsBoolean())
+                {
+                    tfDownloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/m153_47c0856d/vstsom.zip";
+                    executionContext.Debug("Using the legacy version of tf.exe");
+                }
+                else
+                {
+                    tfDownloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/m153_47c0856d_adhoc/vstsom.zip";
+                    executionContext.Debug("Using the default version of tf.exe");
+                }
                 string tempTfDirectory = Path.Combine(externalsPath, "tf_download_temp");
 
                 await DownloadAsync(executionContext, tfDownloadUrl, tempTfDirectory, tfLegacyExternalsPath, retryOptions);
@@ -48,7 +59,17 @@ public static async Task DownloadLegacyTfToolsAsync(IExecutionContext executionC
 
             if (!Directory.Exists(vstsomLegacyExternalsPath))
             {
-                const string vstsomDownloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/m122_887c6659/vstsom.zip";
+                string vstsomDownloadUrl;
+                if (!AgentKnobs.RollbackToDefaultTfExe.GetValue(executionContext).AsBoolean())
+                {
+                    vstsomDownloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/m122_887c6659/vstsom.zip";
+                    executionContext.Debug("Using the legacy version of vstsom");
+                }
+                else
+                {
+                    vstsomDownloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/m153_47c0856d_adhoc/vstsom.zip";
+                    executionContext.Debug("Using the default version of vstsom");
+                }
                 string tempVstsomDirectory = Path.Combine(externalsPath, "vstsom_download_temp");
 
                 await DownloadAsync(executionContext, vstsomDownloadUrl, tempVstsomDirectory, vstsomLegacyExternalsPath, retryOptions);
diff --git a/src/Misc/externals.sh b/src/Misc/externals.sh
index b68dc57dbf..93062de959 100644
--- a/src/Misc/externals.sh
+++ b/src/Misc/externals.sh
@@ -173,14 +173,14 @@ if [[ "$PACKAGERUNTIME" == "win-x"* ]]; then
         BIT="64"
         acquireExternalTool "$CONTAINER_URL/azcopy/1/azcopy.zip" azcopy
         acquireExternalTool "$CONTAINER_URL/vstshost/m122_887c6659_binding_redirect_patched/vstshost.zip" vstshost
-        acquireExternalTool "$CONTAINER_URL/vstsom/m153_47c0856d_adhoc/vstsom.zip" vstsom
+        acquireExternalTool "$CONTAINER_URL/vstsom/dev17.11vs_c0748e6e/vstsom.zip" vstsom
     fi
 
     acquireExternalTool "$CONTAINER_URL/mingit/${MINGIT_VERSION}/MinGit-${MINGIT_VERSION}-${BIT}-bit.zip" git
     acquireExternalTool "$CONTAINER_URL/git-lfs/${LFS_VERSION}/x${BIT}/git-lfs.exe" "git/mingw${BIT}/bin"
     acquireExternalTool "$CONTAINER_URL/pdbstr/1/pdbstr.zip" pdbstr
     acquireExternalTool "$CONTAINER_URL/symstore/1/symstore.zip" symstore
-    acquireExternalTool "$CONTAINER_URL/vstsom/m153_47c0856d_adhoc/vstsom.zip" tf
+    acquireExternalTool "$CONTAINER_URL/vstsom/dev17.11vs_c0748e6e/vstsom.zip" tf
     acquireExternalTool "$CONTAINER_URL/vswhere/2_8_4/vswhere.zip" vswhere
     acquireExternalTool "https://dist.nuget.org/win-x86-commandline/v4.6.4/nuget.exe" nuget
 
@@ -205,14 +205,14 @@ elif [[ "$PACKAGERUNTIME" == "win-arm64" || "$PACKAGERUNTIME" == "win-arm32" ]];
 
         # acquireExternalTool "$CONTAINER_URL/azcopy/1/azcopy.zip" azcopy # Unavailable for Win ARM 64 - https://learn.microsoft.com/en-us/azure/storage/common/storage-use-azcopy-v10?tabs=dnf#download-the-azcopy-portable-binary
         acquireExternalTool "$CONTAINER_URL/vstshost/m122_887c6659_binding_redirect_patched/vstshost.zip" vstshost  # Custom package. Will the same work for Win ARM 64?
-        acquireExternalTool "$CONTAINER_URL/vstsom/m153_47c0856d_adhoc/vstsom.zip" vstsom  # Custom package. Will the same work for Win ARM 64?
+        acquireExternalTool "$CONTAINER_URL/vstsom/dev17.11vs_c0748e6e/vstsom.zip" vstsom  # Custom package. Will the same work for Win ARM 64?
     fi
 
     acquireExternalTool "$CONTAINER_URL/mingit/${MINGIT_VERSION}/MinGit-${MINGIT_VERSION}-${BIT}-bit.zip" git # Unavailable for Win ARM 64 - https://github.com/git-for-windows/git/releases
     acquireExternalTool "$CONTAINER_URL/git-lfs/${LFS_VERSION}/win-arm${BIT}/git-lfs.exe" "git/mingw${BIT}/bin"
     acquireExternalTool "$CONTAINER_URL/pdbstr/win-arm${BIT}/1/pdbstr.zip" pdbstr
     acquireExternalTool "$CONTAINER_URL/symstore/win-arm${BIT}/1/symstore.zip" symstore
-    acquireExternalTool "$CONTAINER_URL/vstsom/m153_47c0856d_adhoc/vstsom.zip" tf
+    acquireExternalTool "$CONTAINER_URL/vstsom/dev17.11vs_c0748e6e/vstsom.zip" tf
     acquireExternalTool "$CONTAINER_URL/vswhere/2_8_4/vswhere.zip" vswhere
     acquireExternalTool "https://dist.nuget.org/win-x86-commandline/v4.6.4/nuget.exe" nuget
 
diff --git a/src/Test/L0/Worker/TfManagerL0.cs b/src/Test/L0/Worker/TfManagerL0.cs
index 64077afa72..15b0747930 100644
--- a/src/Test/L0/Worker/TfManagerL0.cs
+++ b/src/Test/L0/Worker/TfManagerL0.cs
@@ -78,7 +78,7 @@ public async Task DownloadAsync_Retries()
             retryOptions.Setup(opt => opt.ToString()).Throws<Exception>();
             retryOptions.Setup(opt => opt.Limit).Returns(3);
 
-            const string downloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/m122_887c6659/vstsom.zip";
+            const string downloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/dev17.11vs_c0748e6e/vstsom.zip";
             string tempDirectory = Path.Combine(hostContext.GetDirectory(WellKnownDirectory.Externals), "temp-test");
             string extractDirectory = Path.Combine(hostContext.GetDirectory(WellKnownDirectory.Externals), "test");
 
@@ -110,7 +110,7 @@ public async Task DownloadAsync_Cancellation()
             retryOptions.Setup(opt => opt.ToString()).Callback(() => tokenSource.Cancel());
             retryOptions.Setup(opt => opt.Limit).Returns(3);
 
-            const string downloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/m122_887c6659/vstsom.zip";
+            const string downloadUrl = "https://vstsagenttools.blob.core.windows.net/tools/vstsom/dev17.11vs_c0748e6e/vstsom.zip";
             string tempDirectory = Path.Combine(hostContext.GetDirectory(WellKnownDirectory.Externals), "temp-test");
             string extractDirectory = Path.Combine(hostContext.GetDirectory(WellKnownDirectory.Externals), "test");