diff --git a/CHANGELOG.md b/CHANGELOG.md
index 488eaca..75008be 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ For major (breaking) changes - version 3 and 2 see end of page.
 
 | Version        | Date           | Comment  |
 | -------------- | -------------- | -------- |
+| 4.26.11        | 2020-08-20     | `cpuTemperature()` fixed issue windows |
 | 4.26.10        | 2020-07-16     | `networkStats()` fixed issue blocking windows |
 | 4.26.9         | 2020-06-06     | `networkStats()` fixed comparison issue windows |
 | 4.26.8         | 2020-06-06     | `networkInterfaces()` fixed caching issue |
diff --git a/docs/history.html b/docs/history.html
index 3f1f402..6d4718a 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -83,6 +83,11 @@
                   </tr>
                 </thead>
                 <tbody>
+                  <tr>
+                    <th scope="row">4.26.11</th>
+                    <td>2020-08-20</td>
+                    <td><span class="code">cpuTemperature()</span> fixed issue windows</td>
+                  </tr>
                   <tr>
                     <th scope="row">4.26.10</th>
                     <td>2020-07-16</td>
diff --git a/docs/index.html b/docs/index.html
index da715ef..284440d 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -168,7 +168,7 @@
       <img class="logo" src="assets/logo.png">
       <div class="title">systeminformation</div>
       <div class="subtitle"><span id="typed"></span></div>
-      <div class="version">Current Version: <span id="version">4.26.10</span></div>
+      <div class="version">Current Version: <span id="version">4.26.11</span></div>
       <button class="btn btn-light" onclick="location.href='https://github.com/sebhildebrandt/systeminformation'">View on Github <i class=" fab fa-github"></i></button>
     </div>
     <div class="down">
@@ -207,7 +207,7 @@
         <div class="title">Downloads last month</div>
       </div>
       <div class="col-xl-4 col-lg-4 col-md-4 col-12">
-        <div class="numbers">304</div>
+        <div class="numbers">328</div>
         <div class="title">Dependends</div>
       </div>
     </div>
diff --git a/lib/cpu.js b/lib/cpu.js
index 7113727..22d9cd4 100644
--- a/lib/cpu.js
+++ b/lib/cpu.js
@@ -784,6 +784,7 @@ function cpuTemperature(callback) {
               }
               if (callback) { callback(result); }
               resolve(result);
+              return;
             }
           }
           exec('sensors', function (error, stdout) {
@@ -819,6 +820,7 @@ function cpuTemperature(callback) {
               if (result.main !== -1.0 || result.max !== -1.0) {
                 if (callback) { callback(result); }
                 resolve(result);
+                return;
               }
             }
             fs.stat('/sys/class/thermal/thermal_zone0/temp', function (err) {
diff --git a/lib/docker.js b/lib/docker.js
index 32b1666..22d69a3 100644
--- a/lib/docker.js
+++ b/lib/docker.js
@@ -62,7 +62,7 @@ function dockerInfo(callback) {
         result.cgroupDriver = data.CgroupDriver;
         result.nEventsListener = data.NEventsListener;
         result.kernelVersion = data.KernelVersion;
-        result.pperatingSystem = data.OperatingSystem;
+        result.operatingSystem = data.OperatingSystem;
         result.osType = data.OSType;
         result.architecture = data.Architecture;
         result.ncpu = data.NCPU;
diff --git a/lib/network.js b/lib/network.js
index c44d329..0af8932 100644
--- a/lib/network.js
+++ b/lib/network.js
@@ -586,13 +586,13 @@ function getLinuxIfaceDHCPstatus(iface, connectionName, DHCPNics) {
 
       let dhcStatus = resultFormat.split(' ').slice(1).toString();
       switch (dhcStatus) {
-        case 'auto':
-          result = true;
-          break;
+      case 'auto':
+        result = true;
+        break;
 
-        default:
-          result = false;
-          break;
+      default:
+        result = false;
+        break;
       }
       return result;
     } catch (e) {
@@ -679,7 +679,7 @@ function testVirtualNic(iface, ifaceName, mac) {
 
 function networkInterfaces(callback, rescan = true) {
 
-  if (typeof callback === "boolean") {
+  if (typeof callback === 'boolean') {
     rescan = callback;
     callback = null;
   }
diff --git a/lib/osinfo.js b/lib/osinfo.js
index 9d373a9..6022c85 100644
--- a/lib/osinfo.js
+++ b/lib/osinfo.js
@@ -324,8 +324,7 @@ function isUefiLinux() {
       fs.stat('/sys/firmware/efi', function (err) {
         if (!err) {
           resolve(true);
-        }
-        else {
+        } else {
           resolve(false);
         }
       });
@@ -341,6 +340,7 @@ function isUefiWindows() {
           if (!error) {
             const line = stdout.toString().split('\n\r')[0];
             resolve(line.toLowerCase().indexOf('uefi') >= 0);
+            return;
           }
           resolve(false);
         });
diff --git a/lib/util.js b/lib/util.js
index 30b268c..622531d 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -332,7 +332,11 @@ function powerShell(cmd) {
     process.nextTick(() => {
       try {
         const child = spawn('powershell.exe', ['-NoLogo', '-InputFormat', 'Text', '-NoExit', '-ExecutionPolicy', 'Unrestricted', '-Command', '-'], {
-          stdio: 'pipe'
+          stdio: 'pipe',
+          windowsHide: true,
+          maxBuffer: 1024 * 20000,
+          encoding: 'UTF-8',
+          env: util._extend({}, process.env, { LANG: 'en_US.UTF-8' })
         });
 
         if (child && !child.pid) {