diff --git a/confgenerator/logging_receivers.go b/confgenerator/logging_receivers.go
index 25a1bf0de9..0f0a9c3035 100644
--- a/confgenerator/logging_receivers.go
+++ b/confgenerator/logging_receivers.go
@@ -617,8 +617,12 @@ func windowsEventLogV1Processors(ctx context.Context) ([]otel.Component, error)
 					)
 				},
 			},
-			// TODO: Convert from array of maps to array of strings
-			"jsonPayload.StringInserts": {CopyFrom: "jsonPayload.event_data.data"},
+			"jsonPayload.StringInserts": {
+				CopyFrom: "jsonPayload.event_data.data",
+				CustomConvertFunc: func(v ottl.LValue) ottl.Statements {
+					return v.Set(ottl.ToValues(v))
+				},
+			},
 			"jsonPayload.TimeGenerated": {
 				CopyFrom:          "jsonPayload.system_time",
 				CustomConvertFunc: formatSystemTime,
diff --git a/confgenerator/otel/ottl/ottl.go b/confgenerator/otel/ottl/ottl.go
index 830d323acb..4c0f68d3cc 100644
--- a/confgenerator/otel/ottl/ottl.go
+++ b/confgenerator/otel/ottl/ottl.go
@@ -176,6 +176,10 @@ func FormatTime(a Value, format string) Value {
 	return valuef(`FormatTime(%s, %q)`, a, format)
 }
 
+func ToValues(a Value) Value {
+	return valuef(`ToValues(%s)`, a)
+}
+
 func IsMatch(target Value, pattern string) Value {
 	return valuef(`IsMatch(%s, %q)`, target, pattern)
 }
diff --git a/confgenerator/testdata/goldens/logging-otel-processor_modify_fields/golden/windows-2012/otel.yaml b/confgenerator/testdata/goldens/logging-otel-processor_modify_fields/golden/windows-2012/otel.yaml
index de95c69679..bc8fd96bfd 100644
--- a/confgenerator/testdata/goldens/logging-otel-processor_modify_fields/golden/windows-2012/otel.yaml
+++ b/confgenerator/testdata/goldens/logging-otel-processor_modify_fields/golden/windows-2012/otel.yaml
@@ -713,6 +713,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -820,6 +821,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -927,6 +929,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
diff --git a/confgenerator/testdata/goldens/logging-otel-processor_modify_fields/golden/windows/otel.yaml b/confgenerator/testdata/goldens/logging-otel-processor_modify_fields/golden/windows/otel.yaml
index de95c69679..bc8fd96bfd 100644
--- a/confgenerator/testdata/goldens/logging-otel-processor_modify_fields/golden/windows/otel.yaml
+++ b/confgenerator/testdata/goldens/logging-otel-processor_modify_fields/golden/windows/otel.yaml
@@ -713,6 +713,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -820,6 +821,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -927,6 +929,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
diff --git a/confgenerator/testdata/goldens/logging-otel-processor_parse_json/golden/windows-2012/otel.yaml b/confgenerator/testdata/goldens/logging-otel-processor_parse_json/golden/windows-2012/otel.yaml
index 05ec7d5578..0d1cafbb70 100644
--- a/confgenerator/testdata/goldens/logging-otel-processor_parse_json/golden/windows-2012/otel.yaml
+++ b/confgenerator/testdata/goldens/logging-otel-processor_parse_json/golden/windows-2012/otel.yaml
@@ -679,6 +679,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -786,6 +787,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -893,6 +895,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
diff --git a/confgenerator/testdata/goldens/logging-otel-processor_parse_json/golden/windows/otel.yaml b/confgenerator/testdata/goldens/logging-otel-processor_parse_json/golden/windows/otel.yaml
index 05ec7d5578..0d1cafbb70 100644
--- a/confgenerator/testdata/goldens/logging-otel-processor_parse_json/golden/windows/otel.yaml
+++ b/confgenerator/testdata/goldens/logging-otel-processor_parse_json/golden/windows/otel.yaml
@@ -679,6 +679,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -786,6 +787,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -893,6 +895,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
diff --git a/confgenerator/testdata/goldens/logging-otel-receiver_files_refresh_interval/golden/windows-2012/otel.yaml b/confgenerator/testdata/goldens/logging-otel-receiver_files_refresh_interval/golden/windows-2012/otel.yaml
index 2ca8b73e34..327206239e 100644
--- a/confgenerator/testdata/goldens/logging-otel-receiver_files_refresh_interval/golden/windows-2012/otel.yaml
+++ b/confgenerator/testdata/goldens/logging-otel-receiver_files_refresh_interval/golden/windows-2012/otel.yaml
@@ -624,6 +624,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -731,6 +732,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -838,6 +840,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
diff --git a/confgenerator/testdata/goldens/logging-otel-receiver_files_refresh_interval/golden/windows/otel.yaml b/confgenerator/testdata/goldens/logging-otel-receiver_files_refresh_interval/golden/windows/otel.yaml
index 2ca8b73e34..327206239e 100644
--- a/confgenerator/testdata/goldens/logging-otel-receiver_files_refresh_interval/golden/windows/otel.yaml
+++ b/confgenerator/testdata/goldens/logging-otel-receiver_files_refresh_interval/golden/windows/otel.yaml
@@ -624,6 +624,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -731,6 +732,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
@@ -838,6 +840,7 @@ processors:
       - set(body["SourceName"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_10"])
+      - set(cache["value"], ToValues(cache["value"]))
       - set(body["StringInserts"], cache["value"]) where (cache != nil and cache["value"] != nil)
       - delete_key(cache, "value") where (cache != nil and cache["value"] != nil)
       - set(cache["value"], cache["__field_11"])
diff --git a/transformation_test/testdata/windows_event_log_v1/output_otel.yaml b/transformation_test/testdata/windows_event_log_v1/output_otel.yaml
index aab5cd1b36..bb9a13e8b3 100644
--- a/transformation_test/testdata/windows_event_log_v1/output_otel.yaml
+++ b/transformation_test/testdata/windows_event_log_v1/output_otel.yaml
@@ -11,8 +11,8 @@
       Sid: ""
       SourceName: Service Control Manager
       StringInserts:
-      - param1: Windows Modules Installer
-      - param2: running
+      - Windows Modules Installer
+      - running
       TimeGenerated: 2025-07-02 20:38:45.0260774 +0000
       TimeWritten: 2025-07-02 20:38:45.0260774 +0000
     logName: projects/my-project/logs/my-log-name
@@ -34,8 +34,8 @@
       Sid: ""
       SourceName: Service Control Manager
       StringInserts:
-      - param1: Software Protection
-      - param2: stopped
+      - Software Protection
+      - stopped
       TimeGenerated: 2025-07-02 20:39:32.3390061 +0000
       TimeWritten: 2025-07-02 20:39:32.3390061 +0000
     logName: projects/my-project/logs/my-log-name