diff --git a/phpvirtualbox/INSTALL.md b/phpvirtualbox/INSTALL.md
deleted file mode 100644
index 97a453f..0000000
--- a/phpvirtualbox/INSTALL.md
+++ /dev/null
@@ -1,22 +0,0 @@
-```
-# install virtualbox
-echo "deb http://download.virtualbox.org/virtualbox/debian $(lsb_release -cs) contrib non-free" > /etc/apt/sources.list.d/virtualbox.list
-wget -O- http://download.virtualbox.org/virtualbox/debian/oracle_vbox_2016.asc | apt-key add -
-apt-get update
-apt-get install virtualbox-5.0
-systemctl status vboxdrv
-
-# install extpack
-wget http://download.virtualbox.org/virtualbox/5.0.20/Oracle_VM_VirtualBox_Extension_Pack-5.0.20-106931.vbox-extpack
-VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-5.0.20-106931.vbox-extpack
-VBoxManage list extpacks
-
-# install vagrant
-wget https://releases.hashicorp.com/vagrant/1.8.4/vagrant_1.8.4_x86_64.deb
-dpkg -i vagrant_1.8.4_x86_64.deb
-vagrant version
-
-# start vm
-vagrant init debian/jessie64
-vagrant up
-```
diff --git a/phpvirtualbox/README.md b/phpvirtualbox/README.md
index fc78359..394b734 100644
--- a/phpvirtualbox/README.md
+++ b/phpvirtualbox/README.md
@@ -44,7 +44,7 @@ WantedBy=multi-user.target
 ```bash
 # install virtualbox
 echo "deb http://download.virtualbox.org/virtualbox/debian $(lsb_release -cs) contrib non-free" > /etc/apt/sources.list.d/virtualbox.list
-curl http://download.virtualbox.org/virtualbox/debian/oracle_vbox_2016.asc | apt-key add
+wget -O- http://download.virtualbox.org/virtualbox/debian/oracle_vbox_2016.asc | apt-key add -
 apt-get update
 apt-get install virtualbox-5.0
 systemctl status vboxdrv
@@ -55,11 +55,12 @@ VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-5.0.20-106931.vbo
 VBoxManage list extpacks
 
 # install vagrant
-wget https://releases.hashicorp.com/vagrant/1.8.1/vagrant_1.8.1_x86_64.deb
-dpkg -i vagrant_1.8.1_x86_64.deb
+wget https://releases.hashicorp.com/vagrant/1.8.4/vagrant_1.8.4_x86_64.deb
+dpkg -i vagrant_1.8.4_x86_64.deb
 vagrant version
 
 # start vm
+vagrant box add debian/jessie64
 vagrant init debian/jessie64
 vagrant up