diff --git a/lib/system.js b/lib/system.js
index 5c2a6b0f..d8f897d0 100644
--- a/lib/system.js
+++ b/lib/system.js
@@ -317,6 +317,12 @@ function system(callback) {
 
 exports.system = system;
 
+function cleanDefaults(s) {
+  if (s === 'Default string') { s = ''; }
+  if (s.toLowerCase().indexOf('o.e.m.') !== -1) { s = ''; }
+  
+  return s
+}
 function bios(callback) {
 
   return new Promise((resolve) => {
@@ -418,7 +424,7 @@ function bios(callback) {
               }
               result.releaseDate = util.getValue(lines, 'releasedate', ':');
               result.revision = util.getValue(lines, 'buildnumber', ':');
-              result.serial = util.getValue(lines, 'serialnumber', ':');
+              result.serial = cleanDefaults(util.getValue(lines, 'serialnumber', ':'));
             }
 
             if (callback) { callback(result); }
@@ -555,23 +561,26 @@ function baseboard(callback) {
           const workload = [];
           const win10plus = parseInt(os.release()) >= 10;
           const maxCapacityAttribute = win10plus ? 'MaxCapacityEx' : 'MaxCapacity';
-          workload.push(util.powerShell('Get-CimInstance Win32_baseboard | select Model,Manufacturer,Product,Version,SerialNumber,PartNumber,SKU | fl'));
+          workload.push(util.powerShell('Get-CimInstance Win32_baseboard | select Model,Manufacturer,Product,Version,SerialNumber,PartNumber,SKU,SMBIOSAssetTag | fl'));
           workload.push(util.powerShell(`Get-CimInstance Win32_physicalmemoryarray | select ${maxCapacityAttribute}, MemoryDevices | fl`));
           util.promiseAll(
             workload
           ).then((data) => {
             let lines = data.results[0] ? data.results[0].toString().split('\r\n') : [''];
 
-            result.manufacturer = util.getValue(lines, 'manufacturer', ':');
-            result.model = util.getValue(lines, 'model', ':');
+            result.manufacturer = cleanDefaults(util.getValue(lines, 'manufacturer', ':'));
+            result.model = cleanDefaults(util.getValue(lines, 'model', ':'));
             if (!result.model) {
-              result.model = util.getValue(lines, 'product', ':');
+              result.model = cleanDefaults(util.getValue(lines, 'product', ':'));
+            }
+            result.version = cleanDefaults(util.getValue(lines, 'version', ':'));
+            result.serial = cleanDefaults(util.getValue(lines, 'serialnumber', ':'));
+            result.assetTag = cleanDefaults(util.getValue(lines, 'partnumber', ':'));
+            if (!result.assetTag) {
+              result.assetTag = cleanDefaults(util.getValue(lines, 'sku', ':'));
             }
-            result.version = util.getValue(lines, 'version', ':');
-            result.serial = util.getValue(lines, 'serialnumber', ':');
-            result.assetTag = util.getValue(lines, 'partnumber', ':');
             if (!result.assetTag) {
-              result.assetTag = util.getValue(lines, 'sku', ':');
+              result.assetTag = cleanDefaults(util.getValue(lines, 'SMBIOSAssetTag', ':'));
             }
 
             // memphysical
@@ -688,22 +697,21 @@ function chassis(callback) {
       }
       if (_windows) {
         try {
-          util.powerShell('Get-CimInstance Win32_SystemEnclosure | select Model,Manufacturer,ChassisTypes,Version,SerialNumber,PartNumber,SKU | fl').then((stdout, error) => {
+          util.powerShell('Get-CimInstance Win32_SystemEnclosure | select Model,Manufacturer,ChassisTypes,Version,SerialNumber,PartNumber,SKU,SMBIOSAssetTag | fl').then((stdout, error) => {
             if (!error) {
               let lines = stdout.toString().split('\r\n');
 
-              result.manufacturer = util.getValue(lines, 'manufacturer', ':');
-              result.model = util.getValue(lines, 'model', ':');
+              result.manufacturer = cleanDefaults(util.getValue(lines, 'manufacturer', ':'));
+              result.model = cleanDefaults(util.getValue(lines, 'model', ':'));
               const ctype = parseInt(util.getValue(lines, 'ChassisTypes', ':').replace(/\D/g, ''));
               result.type = (ctype && !isNaN(ctype) && ctype < chassisTypes.length) ? chassisTypes[ctype - 1] : '';
-              result.version = util.getValue(lines, 'version', ':');
-              result.serial = util.getValue(lines, 'serialnumber', ':');
-              result.assetTag = util.getValue(lines, 'partnumber', ':');
-              result.sku = util.getValue(lines, 'sku', ':');
-              if (result.manufacturer.toLowerCase().indexOf('o.e.m.') !== -1) { result.manufacturer = '-'; }
-              if (result.version.toLowerCase().indexOf('o.e.m.') !== -1) { result.version = '-'; }
-              if (result.serial.toLowerCase().indexOf('o.e.m.') !== -1) { result.serial = '-'; }
-              if (result.assetTag.toLowerCase().indexOf('o.e.m.') !== -1) { result.assetTag = '-'; }
+              result.version = cleanDefaults(util.getValue(lines, 'version', ':'));
+              result.serial = cleanDefaults(util.getValue(lines, 'serialnumber', ':'));
+              result.assetTag = cleanDefaults(util.getValue(lines, 'partnumber', ':'));
+              if (!result.assetTag) {
+                result.assetTag = cleanDefaults(util.getValue(lines, 'SMBIOSAssetTag', ':'));
+              }
+              result.sku = cleanDefaults(util.getValue(lines, 'sku', ':'));
             }
 
             if (callback) { callback(result); }