diff --git a/script/copy-folder.cmd b/script/copy-folder.cmd
deleted file mode 100644
index 1021c30f3..000000000
--- a/script/copy-folder.cmd
+++ /dev/null
@@ -1,18 +0,0 @@
-@echo off
-
-set USAGE=Usage: %0 source destination
-
-if [%1] == [] (
-  echo %USAGE%
-  exit 1
-)
-if [%2] == [] (
-  echo %USAGE%
-  exit 2
-)
-
-:: rm -rf %2
-if exist %2 rmdir %2 /s /q
-
-:: cp -rf %1 %2
-(robocopy %1 %2 /e) ^& IF %ERRORLEVEL% LEQ 1 exit 0
diff --git a/script/lib/install-application.js b/script/lib/install-application.js
index d246c7b94..d21a6e53c 100644
--- a/script/lib/install-application.js
+++ b/script/lib/install-application.js
@@ -3,7 +3,6 @@
 const fs = require('fs-extra')
 const handleTilde = require('./handle-tilde')
 const path = require('path')
-const runas = require('runas')
 const template = require('lodash.template')
 
 const CONFIG = require('../config')
@@ -31,11 +30,12 @@ module.exports = function (packagedAppPath, installDir) {
       fs.copySync(packagedAppPath, installationDirPath)
     } catch (e) {
       console.log(`Administrator elevation required to install into "${installationDirPath}"`)
-      const copyScriptPath = path.join(CONFIG.repositoryRootPath, 'script', 'copy-folder.cmd')
-      const exitCode = runas('cmd', ['/c', copyScriptPath, packagedAppPath, installationDirPath], {admin: true})
-      if (exitCode !== 0) {
-        throw new Error(`Installation failed. "${copyScriptPath}" exited with status: ${exitCode}`)
-      }
+      const fsAdmin = require('fs-admin')
+      return new Promise((resolve, reject) => {
+        fsAdmin.recursiveCopy(packagedAppPath, installationDirPath, (error) => {
+          error ? reject(error) : resolve()
+        })
+      })
     }
   } else {
     const atomExecutableName = CONFIG.channel === 'beta' ? 'atom-beta' : 'atom'
@@ -95,4 +95,6 @@ module.exports = function (packagedAppPath, installDir) {
     console.log(`Changing permissions to 755 for "${installationDirPath}"`)
     fs.chmodSync(installationDirPath, '755')
   }
+
+  return Promise.resolve()
 }
diff --git a/script/package.json b/script/package.json
index 454d561aa..59ca93375 100644
--- a/script/package.json
+++ b/script/package.json
@@ -13,6 +13,7 @@
     "electron-mksnapshot": "~1.6",
     "electron-packager": "7.3.0",
     "electron-winstaller": "2.6.2",
+    "fs-admin": "^0.1.5",
     "fs-extra": "0.30.0",
     "glob": "7.0.3",
     "joanna": "0.0.9",
@@ -25,7 +26,6 @@
     "npm": "5.3.0",
     "passwd-user": "2.1.0",
     "pegjs": "0.9.0",
-    "runas": "3.1.1",
     "season": "5.3.0",
     "semver": "5.3.0",
     "standard": "8.4.0",