diff --git a/CHANGELOG.md b/CHANGELOG.md
index 859b91e..28dd98b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -83,6 +83,7 @@ For major (breaking) changes - **version 4, 3 and 2** - see end of page.
 
 | Version | Date       | Comment                                                                                             |
 | ------- | ---------- | --------------------------------------------------------------------------------------------------- |
+| 5.21.20 | 2023-11-24 | `powerShell()` fix invalid pattern (windows)                                                        |
 | 5.21.19 | 2023-12-03 | fix typescript typings                                                                              |
 | 5.21.18 | 2023-11-24 | `networkConnections()` fix truncated ip6 addr (macOS)                                               |
 | 5.21.17 | 2023-11-11 | `system()` Raspberry Pi 5 name fix                                                                  |
diff --git a/docs/history.html b/docs/history.html
index 381a219..02a276c 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -57,6 +57,11 @@
                     </tr>
                   </thead>
                   <tbody>
+                    <tr>
+                      <th scope="row">5.21.20</th>
+                      <td>2023-12-03</td>
+                      <td><span class="code">powerShell()</span> fix invalid pattern (windows)</td>
+                    </tr>
                     <tr>
                       <th scope="row">5.21.19</th>
                       <td>2023-12-03</td>
diff --git a/docs/index.html b/docs/index.html
index 7087703..001e7fa 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -170,7 +170,7 @@
       <img class="logo" src="assets/logo.png" alt="logo">
       <div class="title">systeminformation</div>
       <div class="subtitle"><span id="typed"></span>&nbsp;</div>
-      <div class="version">New Version: <span id="version">5.21.19</span></div>
+      <div class="version">New Version: <span id="version">5.21.20</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">
diff --git a/lib/util.js b/lib/util.js
index 583d78f..be116dc 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -423,10 +423,10 @@ function powerShellRelease() {
 
 function powerShell(cmd) {
 
-  const pattern = [
-    '[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)',
-    '(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-nq-uy=><~]))'
-  ].join('|');
+  /// const pattern = [
+  ///   '[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)',
+  ///   '(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-nq-uy=><~]))'
+  /// ].join('|');
 
   if (_psPersistent) {
     const id = Math.random().toString(36).substring(2, 12);
@@ -472,7 +472,7 @@ function powerShell(cmd) {
           }
           if (child && child.pid) {
             child.stdout.on('data', function (data) {
-              result = result + data.toString('utf8').replace(pattern, '');
+              result = result + data.toString('utf8');
             });
             child.stderr.on('data', function () {
               child.kill();