diff --git a/lib/cpu.js b/lib/cpu.js
index eb405b6..4de9725 100644
--- a/lib/cpu.js
+++ b/lib/cpu.js
@@ -429,7 +429,7 @@ function getCpu() {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' cpu get /value', util.execOptsWin, function (error, stdout) {
+          util.wmic('cpu get /value').then((stdout, error) => {
             if (!error) {
               let lines = stdout.split('\r\n');
               let name = util.getValue(lines, 'name', '=') || '';
@@ -489,7 +489,7 @@ function getCpu() {
                 result.physicalCores = parseInt(countCores) || util.cores();
               }
             }
-            exec(util.getWmic() + ' path Win32_CacheMemory get CacheType,InstalledSize,Purpose', function (error, stdout) {
+            util.wmic('path Win32_CacheMemory get CacheType,InstalledSize,Purpose').then((stdout, error) => {
               if (!error) {
                 let lines = stdout.split('\r\n').filter(line => line.trim() !== '').filter((line, idx) => idx > 0);
                 lines.forEach(function (line) {
@@ -701,7 +701,7 @@ function cpuTemperature(callback) {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' /namespace:\\\\root\\wmi PATH MSAcpi_ThermalZoneTemperature get CurrentTemperature', util.execOptsWin, function (error, stdout) {
+          util.wmic('/namespace:\\\\root\\wmi PATH MSAcpi_ThermalZoneTemperature get CurrentTemperature').then((stdout, error) => {
             if (!error) {
               let sum = 0;
               let lines = stdout.split('\r\n').filter(line => line.trim() !== '').filter((line, idx) => idx > 0);
@@ -929,7 +929,7 @@ function cpuCache(callback) {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' cpu get l2cachesize, l3cachesize /value', util.execOptsWin, function (error, stdout) {
+          util.wmic('cpu get l2cachesize, l3cachesize /value').then((stdout, error) => {
             if (!error) {
               let lines = stdout.split('\r\n');
               result.l1d = 0;
@@ -939,7 +939,7 @@ function cpuCache(callback) {
               if (result.l2) { result.l2 = parseInt(result.l2, 10) * 1024; }
               if (result.l3) { result.l3 = parseInt(result.l3, 10) * 1024; }
             }
-            exec(util.getWmic() + ' path Win32_CacheMemory get CacheType,InstalledSize,Purpose', function (error, stdout) {
+            util.wmic('path Win32_CacheMemory get CacheType,InstalledSize,Purpose').then((stdout, error) => {
               if (!error) {
                 let lines = stdout.split('\r\n').filter(line => line.trim() !== '').filter((line, idx) => idx > 0);
                 lines.forEach(function (line) {
diff --git a/lib/util.js b/lib/util.js
index d43be94..3cb4494 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -28,7 +28,7 @@ const _openbsd = (_platform === 'openbsd');
 // const _sunos = (_platform === 'sunos');
 
 let _cores = 0;
-let wmic = '';
+let wmicPath = '';
 let codepage = '';
 
 const execOptsWin = {
@@ -220,16 +220,39 @@ function findObjectByKey(array, key, value) {
 }
 
 function getWmic() {
-  if (os.type() === 'Windows_NT' && !wmic) {
+  if (os.type() === 'Windows_NT' && !wmicPath) {
     try {
-      wmic = execSync('WHERE WMIC').toString().trim();
+      wmicPath = execSync('WHERE WMIC').toString().trim();
     } catch (e) {
       if (fs.existsSync(process.env.WINDIR + '\\system32\\wbem\\wmic.exe')) {
         wmic = process.env.WINDIR + '\\system32\\wbem\\wmic.exe';
-      } else wmic = 'wmic';
+      } else wmicPath = 'wmic';
     }
   }
-  return wmic;
+  return wmicPath;
+}
+
+function wmic(command, options) {
+  options = options || execOptsWin;
+  return new Promise((resolve) => {
+    process.nextTick(() => {
+      try {
+        exec(getWmic() + ' ' + command, options, function (error, stdout) {
+          resolve(stdout, error)
+          // resolve({
+          //   stdout,
+          //   error
+          // });
+        }).stdin.end();
+      } catch (e) {
+        resolve('', e)
+        // resolve({
+        //   stdout: '',
+        //   error: e
+        // });
+      }
+    })
+  })
 }
 
 function powerShell(cmd) {
@@ -384,6 +407,7 @@ exports.parseDateTime = parseDateTime;
 exports.parseHead = parseHead;
 exports.findObjectByKey = findObjectByKey;
 exports.getWmic = getWmic;
+exports.wmic = wmic;
 exports.powerShell = powerShell;
 exports.nanoSeconds = nanoSeconds;
 exports.countUniqueLines = countUniqueLines;