diff --git a/engine/runtime/src/test/scala/org/enso/interpreter/test/semantic/SystemProcessTest.scala b/engine/runtime/src/test/scala/org/enso/interpreter/test/semantic/SystemProcessTest.scala
index b3cd6f9f4311..d38ec8d1fc5f 100644
--- a/engine/runtime/src/test/scala/org/enso/interpreter/test/semantic/SystemProcessTest.scala
+++ b/engine/runtime/src/test/scala/org/enso/interpreter/test/semantic/SystemProcessTest.scala
@@ -16,7 +16,7 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
     interpreterContext: InterpreterContext
   ): Unit = {
 
-    "return success exit code" in {
+    "return success exit code (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all
           |
@@ -29,6 +29,19 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErr shouldEqual List()
     }
 
+    "return success exit code (Windows)" taggedAs OsWindows in {
+      val code =
+        """from Standard.Builtins import all
+          |
+          |main =
+          |    result = System.create_process "cmd" (Array.new_1 "/c") "" False False False
+          |    result.exit_code
+          |""".stripMargin
+      eval(code) shouldEqual 0
+      consumeOut shouldEqual List()
+      consumeErr shouldEqual List()
+    }
+
     "return error when creating nonexistent command" in {
       val code =
         """from Standard.Builtins import all
@@ -41,7 +54,7 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErr shouldEqual List()
     }
 
-    "return error exit code" in {
+    "return error exit code (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all
           |
@@ -55,6 +68,20 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErr shouldEqual List()
     }
 
+    "return error exit code (Windows)" taggedAs OsWindows in {
+      val code =
+        """from Standard.Builtins import all
+          |
+          |main =
+          |    result = System.create_process "cmd" (Array.new_2 "/c" "exit 7") "" False False False
+          |    result.exit_code
+          |""".stripMargin
+
+      eval(code) shouldEqual 7
+      consumeOut shouldEqual List()
+      consumeErr shouldEqual List()
+    }
+
     "redirect stdin chars (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all
@@ -101,7 +128,7 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErr shouldEqual List()
     }
 
-    "redirect stdin unused" in {
+    "redirect stdin unused (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all
           |
@@ -116,7 +143,22 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErr shouldEqual List()
     }
 
-    "redirect stdin empty" in {
+    "redirect stdin unused (Windows)" taggedAs OsWindows in {
+      val code =
+        """from Standard.Builtins import all
+          |
+          |main =
+          |    result = System.create_process "cmd" (Array.new_2 "/c" "echo 9") "" True True True
+          |    result.exit_code
+          |""".stripMargin
+
+      feedInput("unused input")
+      eval(code) shouldEqual 0
+      consumeOut shouldEqual List("9")
+      consumeErr shouldEqual List()
+    }
+
+    "redirect stdin empty (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all
           |
@@ -130,6 +172,20 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErr shouldEqual List()
     }
 
+    "redirect stdin empty (Windows)" taggedAs OsWindows in {
+      val code =
+        """from Standard.Builtins import all
+          |
+          |main =
+          |    result = System.create_process "cmd" (Array.new_2 "/c" "echo 9") "" True True True
+          |    result.exit_code
+          |""".stripMargin
+
+      eval(code) shouldEqual 0
+      consumeOut shouldEqual List("9")
+      consumeErr shouldEqual List()
+    }
+
     "provide stdin string (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all
@@ -158,7 +214,7 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErr shouldEqual List()
     }
 
-    "redirect stdout chars" in {
+    "redirect stdout chars (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all
           |
@@ -172,6 +228,20 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErr shouldEqual List()
     }
 
+    "redirect stdout chars (Windows)" taggedAs OsWindows in {
+      val code =
+        """from Standard.Builtins import all
+          |
+          |main =
+          |    result = System.create_process "cmd" (Array.new_2 "/c" "echo foobar") "" False True True
+          |    result.exit_code
+          |""".stripMargin
+
+      eval(code) shouldEqual 0
+      consumeOut shouldEqual List("foobar")
+      consumeErr shouldEqual List()
+    }
+
     "redirect stdout binary (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all
@@ -186,7 +256,7 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErrBytes shouldEqual Array()
     }
 
-    "return stdout string" in {
+    "return stdout string (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all
           |
@@ -201,6 +271,21 @@ class SystemProcessTest extends InterpreterTest with OsSpec {
       consumeErr shouldEqual List()
     }
 
+    "return stdout string (Windows)" taggedAs OsWindows in {
+      val code =
+        """from Standard.Builtins import all
+          |
+          |main =
+          |    result = System.create_process "cmd" (Array.new_2 "/c" "echo foobar") "" False False False
+          |    result.stdout
+          |""".stripMargin
+
+      val result = eval(code).asString().replace("\r\n","\n")
+      result shouldEqual "foobar\n"
+      consumeOut shouldEqual List()
+      consumeErr shouldEqual List()
+    }
+
     "redirect stderr chars (Unix)" taggedAs OsUnix in {
       val code =
         """from Standard.Builtins import all