diff --git a/lib/osinfo.js b/lib/osinfo.js
index 26ab2b1..bc3814a 100644
--- a/lib/osinfo.js
+++ b/lib/osinfo.js
@@ -337,14 +337,14 @@ function isUefiWindows() {
   return new Promise((resolve) => {
     process.nextTick(() => {
       try {
-        exec('type %windir%\\Panther\\setupact.log | findstr "Detected boot environment" ', util.execOptsWin, function (error, stdout) {
+        exec('findstr /C:"Detected boot environment" "%windir%\\Panther\\setupact.log"', util.execOptsWin, function (error, stdout) {
           if (!error) {
             const line = stdout.toString().split('\n\r')[0];
             resolve(line.toLowerCase().indexOf('uefi') >= 0);
           }
           resolve(false);
         });
-      } catch(e) {
+      } catch (e) {
         resolve(false);
       }
     });