diff --git a/configure.js b/configure.js
index cb20c936..a271fb47 100644
--- a/configure.js
+++ b/configure.js
@@ -91,7 +91,7 @@ module.exports = (port, spinner) => {
               reject(new Error('Git is not installed or not reachable from PATH.'))
             }
             let gitver = _.chain(stdout.replace(/[^\d.]/g, '')).split('.').take(3).join('.').value()
-            if (!semver.satisfies(semver.clean(gitver), '>=2.11.0')) {
+            if (!semver.satisfies(semver.clean(gitver), '>=2.7.4')) {
               reject(new Error('Git version is too old. Minimum is v2.7.4.'))
             }
             resolve('Git v' + gitver + ' detected. Minimum is v2.7.4.')
diff --git a/libs/auth.js b/libs/auth.js
index 19feb4f1..92fd06fe 100644
--- a/libs/auth.js
+++ b/libs/auth.js
@@ -192,47 +192,23 @@ module.exports = function (passport) {
   db.onReady.then(() => {
     db.User.findOne({ provider: 'local', email: 'guest' }).then((c) => {
       if (c < 1) {
-        // Create root admin account
-
-        winston.info('[AUTH] No administrator account found. Creating a new one...')
-        db.User.hashPassword('admin123').then((pwd) => {
-          return db.User.create({
-            provider: 'local',
-            email: appconfig.admin,
-            name: 'Administrator',
-            password: pwd,
-            rights: [{
-              role: 'admin',
-              path: '/',
-              exact: false,
-              deny: false
-            }]
-          })
+        // Create guest account
+
+        return db.User.create({
+          provider: 'local',
+          email: 'guest',
+          name: 'Guest',
+          password: '',
+          rights: [{
+            role: 'read',
+            path: '/',
+            exact: false,
+            deny: !appconfig.public
+          }]
         }).then(() => {
-          winston.info('[AUTH] Administrator account created successfully!')
-        }).then(() => {
-          if (appdata.capabilities.guest) {
-            // Create guest account
-
-            return db.User.create({
-              provider: 'local',
-              email: 'guest',
-              name: 'Guest',
-              password: '',
-              rights: [{
-                role: 'read',
-                path: '/',
-                exact: false,
-                deny: !appconfig.public
-              }]
-            }).then(() => {
-              winston.info('[AUTH] Guest account created successfully!')
-            })
-          } else {
-            return true
-          }
+          winston.info('[AUTH] Guest account created successfully!')
         }).catch((err) => {
-          winston.error('[AUTH] An error occured while creating administrator/guest account:')
+          winston.error('[AUTH] An error occured while creating guest account:')
           winston.error(err)
         })
       }
diff --git a/npm/install.js b/npm/install.js
index 59a01b58..a4ca085a 100644
--- a/npm/install.js
+++ b/npm/install.js
@@ -11,6 +11,7 @@ const zlib = require('zlib')
 const inquirer = require('inquirer')
 const colors = require('colors/safe')
 const _ = require('lodash')
+const os = require('os')
 
 let installDir = path.resolve(__dirname, '../..')
 
@@ -32,6 +33,11 @@ pm2.connectAsync().then(() => {
   }).catch(err => { // eslint-disable-line handle-callback-err
     return true
   })
+}).then(() => {
+  if (os.totalmem() < 1024 * 1024 * 768) {
+    throw new Error('Not enough memory to install dependencies. Minimum is 768 MB.')
+  }
+  return true
 }).then(() => {
   /**
    * Fetch version from npm package