diff --git a/src/tests/baseservices/exceptions/OutOfMemoryException/OutOfMemoryException.cs b/src/tests/baseservices/exceptions/OutOfMemoryException/OutOfMemoryException.cs
index 49380b66b05f11..a67ef7233489fe 100644
--- a/src/tests/baseservices/exceptions/OutOfMemoryException/OutOfMemoryException.cs
+++ b/src/tests/baseservices/exceptions/OutOfMemoryException/OutOfMemoryException.cs
@@ -77,6 +77,7 @@ static int RunSubprocess(string allocateArg, string description)
         // 32 MB GC heap limit (0x2000000): small enough to exhaust quickly but large enough for startup.
         psi.Environment["DOTNET_GCHeapHardLimit"] = "0x2000000";
         psi.Environment["DOTNET_DbgEnableMiniDump"] = "0";
+        psi.Environment["DOTNET_EnableCrashReport"] = "0";
 
         ProcessTextOutput output;
         try
diff --git a/src/tests/baseservices/exceptions/simple/ParallelCrashTester.cs b/src/tests/baseservices/exceptions/simple/ParallelCrashTester.cs
index c916fa18b95856..f40c12a3df9133 100644
--- a/src/tests/baseservices/exceptions/simple/ParallelCrashTester.cs
+++ b/src/tests/baseservices/exceptions/simple/ParallelCrashTester.cs
@@ -40,8 +40,9 @@ private static void RunParallelCrash(int arg)
         testProcess.StartInfo.FileName = Path.Combine(Environment.GetEnvironmentVariable("CORE_ROOT"), "corerun");
         testProcess.StartInfo.Arguments = $"ParallelCrash.dll {arg}";
         testProcess.StartInfo.UseShellExecute = false;
-        // Disable creating dump since the target process is expected to crash
+        // Disable crash diagnostics since the target process is expected to crash
         testProcess.StartInfo.Environment.Remove("DOTNET_DbgEnableMiniDump");
+        testProcess.StartInfo.Environment.Remove("DOTNET_EnableCrashReport");
         testProcess.Start();
         testProcess.WaitForExit();
 
diff --git a/src/tests/baseservices/exceptions/stackoverflow/stackoverflowtester.cs b/src/tests/baseservices/exceptions/stackoverflow/stackoverflowtester.cs
index de9137c1b5d182..ceb7a90bd0de68 100644
--- a/src/tests/baseservices/exceptions/stackoverflow/stackoverflowtester.cs
+++ b/src/tests/baseservices/exceptions/stackoverflow/stackoverflowtester.cs
@@ -23,6 +23,7 @@ static void TestStackOverflow(string testName, string testArgs, out List<string>
             startInfo.RedirectStandardOutput = true;
             startInfo.RedirectStandardError = true;
             startInfo.Environment.Add("DOTNET_DbgEnableMiniDump", "0");
+            startInfo.Environment.Add("DOTNET_EnableCrashReport", "0");
             startInfo.Environment.Add("DOTNET_LogStackOverflowExit", "1");
 
             using Process testProcess = Process.Start(startInfo);
diff --git a/src/tests/baseservices/exceptions/unhandled/unhandledTester.cs b/src/tests/baseservices/exceptions/unhandled/unhandledTester.cs
index 24e17ec6de542f..78cf4837ab1735 100644
--- a/src/tests/baseservices/exceptions/unhandled/unhandledTester.cs
+++ b/src/tests/baseservices/exceptions/unhandled/unhandledTester.cs
@@ -22,8 +22,9 @@ static void RunExternalProcess(string unhandledType, string assembly)
             startInfo.Arguments = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), assembly) + " " + unhandledType;
             startInfo.RedirectStandardOutput = true;
             startInfo.RedirectStandardError = true;
-            // Disable creating dump since the target process is expected to fail with an unhandled exception
+            // Disable crash diagnostics since the target process is expected to fail with an unhandled exception
             startInfo.Environment.Remove("DOTNET_DbgEnableMiniDump");
+            startInfo.Environment.Remove("DOTNET_EnableCrashReport");
 
             ProcessTextOutput result = Process.RunAndCaptureText(startInfo);
             Console.WriteLine($"Test process {assembly} with argument {unhandledType} exited");