diff --git a/.gitignore b/.gitignore
index 54f33b6..06bfaab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -105,4 +105,7 @@ multibootusb*.exe
 # Test file which I work on to test logic before committing to main file.
 mbusb_te*py
 text.txt
-text.py
\ No newline at end of file
+text.py
+
+# Temp files
+*~
\ No newline at end of file
diff --git a/README.md b/README.md
index bc6f320..c033b6f 100644
--- a/README.md
+++ b/README.md
@@ -1,36 +1,59 @@
-####  User guide is located here http://multibootusb.org/page_guide/
+
+
+### Only limited instructions are provided here. For detailed instruction please refer [User guide ](http://multibootusb.org/page_guide/)
 
 What is multibootusb?
 ---------------------
+
 MultiBootUSB is a cross platform* software/utility to create multi boot live Linux on a removable media i.e USB disk.
 It is similar to unetbootin but many distros can be installed, provided you have enough space on the disk.
 MultiBootUSB also provides an option to uninstall distro(s) at any time, if you wish.
 
 * Only works on windows and linux
 
-How to install?
----------------
+## What does multibootusb do?
 
-The install.py script provided with multibootusb should take care of all dependency and install multibootusb.
-Assume that you have downloaded the package named "multibootusb.tar.gz" in to your home directory.
-Issue the following commands to install multibootusb:-
+MultiBootUSB allows you to do the following:-
 
-```
-tar -xf ./multibootusb.tar.gz  
-cd multibootusb  
-chmod +x ./install.py  
-sudo ./install.py
-```
+1.  Install multiple live Linux and other Operating Systems in to a USB disk and make it bootable without erasing existing data.
+2.  Ability to uninstall installed OS later.
+3.  Write ISO image directly to a USB disk (you can think of GUI for Linux `dd` command).
+4.  Boot ISO images directly without rebooting your system using QEMU option.
+5.  Boot bootable USBs without rebooting your system using QEMU option.
+6.  Boot USB on UEFI/EFI system through GRUB2 bootloader support (limited support).
 
-That is it. You can find multibootusb under system menu or simply launch from terminal by typing "multibootusb".
-If "install.py" script fails to install multibootusb successfully then manually install following packages and rerun the install.py script:-
 
-* mtools util-linux parted python3-qt5 python-dbus pkexec
+## Installation:
+
+* On Windows:-
+    * The windows version of multbootusb is not a standalone program. You need to install it on windows after download. Download the latest 
+    precompiled setup binary (.exe) file from 
+     [here](http://multibootusb.org/page_download/)
+     * The installation is farley simple. Double click on the executable and follow the onscreen instruction.
+
+* On Linux:-
+
+    **Using binary method:-**
+    
+    * Download the installation and source files for various distros from 
+    [here](http://multibootusb.org/page_download/)
+    * Use your favourite package manager to install multibootusb.
+    
+    **Using source code method `Linux`:-**
+    
+    * The install.py script provided with multibootusb should take care of all dependencies and install multibootusb.
+    Assume that you have downloaded the package named **multibootusb.tar.gz** in to your home directory.
+    Issue the following commands to install multibootusb:-
+
+```sh
+    tar -xf ./multibootusb.tar.gz
+    cd multibootusb
+    chmod +x ./install.py   
+    sudo ./install.py
+``` 
+
+---
 
-NOTE: install.py currently supports only distros based on apt-get, yum, zypper, pacman.
-You can add more if you use other package manager system and email to me for adding into upstream.
-The above how to is only for linux. Windows users may download pre compiled standalone binaries/ .exe from
-https://sourceforge.net/projects/multibootusb/files/
 
 How to uninstall?
 -----------------
@@ -42,22 +65,30 @@ chmod +x ./uninstall.py
 sudo ./uninstall.py
 ```
 
+For the rest of operations you can refer [Guide](http://multibootusb.org/page_guide/) section of [http://multibootusb.org](http://multibootusb.org) 
+
 Website:
 --------
-www.multibootusb.org
+
+http://multibootusb.org
+
 
 Development:
 -----------
+
 https://github.com/mbusb/multibootusb
 
 Help:
 -----
-Mail me at feedback.multibootusb@gmail.com for query, help, bug report or feature request.
+
+Use Github issue service at [https://github.com/mbusb/multibootusb/issues](https://github.com/mbusb/multibootusb/issues) 
+for help and issues.    
 
 Contributor(s)
 --------------
-LiQiong Lee
-Ian Bruce
+Ian Bruce  
+LiQiong Lee  
+Alin Trăistaru (alindt)   
 and many others who have given their valuable bug report/ feedback.
 
 Author(s)
diff --git a/build_pkg b/build_pkg
index 2766945..4a4cdbb 100644
--- a/build_pkg
+++ b/build_pkg
@@ -20,6 +20,7 @@ import shutil
 import subprocess
 import sys
 import platform
+import re
 
 
 ####################################################################################################
@@ -34,6 +35,9 @@ else:
     # pyinstaller_path = "/home/sundar/Documents/pyInstaller/pyinstaller.py"
     pyinstaller_path = "/media/sundar/Data/multibootusb/pyinstaller/pyinstaller.py"
     release_dir = "/media/sundar/Data/multibootusb/release"
+    debian_bin_path = '/usr/bin/multibootusb'
+    rpm_bin_path = '/usr/local/bin/multibootusb'
+
 sourceforge_release_path = "multibootusb@frs.sourceforge.net:/home/frs/project/multibootusb/"
 ####################################################################################################
 
@@ -47,6 +51,27 @@ class bcolors:
     ENDC = '\033[0m'
 
 
+def coorect_bin_path(_file_path, search_bin_path, replace_bin_path):
+    import shutil
+
+    # shutil.move(_file_path, _file_path + "~")
+    # destination = open(_file_path, "w")
+    # source = open(_file_path + "~", "r").read()
+
+    with open(_file_path + "~", 'r') as _infile:
+        data = _infile.read()
+
+        if re.search(search_bin_path, data, re.I):
+            _data = re.search(search_bin_path, data, re.I).group()
+            _mod_text = re.sub(search_bin_path, replace_bin_path, data)
+            print('_mod_text', _mod_text)
+            with open(_file_path, 'w') as _out_file:
+                _out_file.write(_mod_text)
+        else:
+            with open(_file_path, 'w') as _out_file:
+                _out_file.write(data)
+
+
 class pkg():
     def __init__(self, name):
         self.pkg_name = name
@@ -64,6 +89,8 @@ class pkg():
         if not os.path.exists(os.path.join(self.release_upload_dir, "Source")):
             os.mkdir(os.path.join(self.release_upload_dir, "Source"))
         if self.pkg_name == "deb":
+            print('Modifying policy file...')
+            coorect_bin_path('org.debian.pkexec.run-multibootusb.policy', rpm_bin_path, debian_bin_path)
             print("Ensure thta you have python-stdeb package installed!")
             stdcfg = """[DEFAULT]
                       Package: multibootusb
@@ -89,6 +116,8 @@ class pkg():
                 print((os.path.join("deb_dist", "python3-multibootusb_" + self.version + "-1_all.deb\n\n\n")))
                 result = True
         elif self.pkg_name == 'rpm' or self.pkg_name == 'suse' or self.pkg_name == 'mageia':
+            print('Modifying policy file for rpm packages...')
+            coorect_bin_path('org.debian.pkexec.run-multibootusb.policy', debian_bin_path, rpm_bin_path)
             if self.pkg_name == 'suse' or self.pkg_name == 'mageia':
                 require = "python3-qt5, parted, util-linux, mtools, python3-dbus, python3-pyudev, p7zip, python3-six"
             else:
@@ -282,6 +311,7 @@ if __name__ == '__main__':
     if platform.system() == 'Linux':
         print('Converting line ending to Linux for proper functioning.')
         os.system('dos2unix multibootusb')
+
     argv = sys.argv
     if not os.path.exists(release_dir):
         print("Release directory does not exist.\nPlease mount and rerun the script.")
diff --git a/multibootusb-pkexec b/multibootusb-pkexec
index f9f7e98..ba44ef3 100644
--- a/multibootusb-pkexec
+++ b/multibootusb-pkexec
@@ -1,6 +1,22 @@
 #!/bin/bash
+# Generic wrapper for locating multibootusb file and execute pkexec accordingly
+# Bin pat of this file and policy file have to match
+
 if [ $(which pkexec) ]; then
-    pkexec --disable-internal-agent "/usr/bin/multibootusb" "$@"
+    if [ -f /usr/bin/multibootusb ]; then
+        pkexec --disable-internal-agent "/usr/bin/multibootusb" "$@"
+    fi
+
+    if [ -f /usr/local/bin/multibootusb ]; then
+        pkexec --disable-internal-agent "/usr/local/bin/multibootusb" "$@"
+    fi
 else
-    /usr/bin/multibootusb "$@"
-fi
\ No newline at end of file
+    if [ -f /usr/bin/multibootusb ]; then
+        /usr/bin/multibootusb "$@"
+    fi
+
+    if [ -f /usr/local/bin/multibootusb ]; then
+        /usr/local/bin/multibootusb "$@"
+    fi
+
+fi
diff --git a/org.debian.pkexec.run-multibootusb.policy b/org.debian.pkexec.run-multibootusb.policy
index e111748..d8e8566 100644
--- a/org.debian.pkexec.run-multibootusb.policy
+++ b/org.debian.pkexec.run-multibootusb.policy
@@ -12,7 +12,7 @@
       <allow_inactive>auth_admin</allow_inactive>
       <allow_active>auth_admin</allow_active>
     </defaults>
-    <annotate key="org.freedesktop.policykit.exec.path">/usr/bin/multibootusb</annotate>
+    <annotate key="org.freedesktop.policykit.exec.path">/usr/local/bin/multibootusb</annotate>
     <annotate key="org.freedesktop.policykit.exec.allow_gui">true</annotate>
   </action>
 
diff --git a/scripts/gen.py b/scripts/gen.py
index 1238a9e..e6a7bd8 100644
--- a/scripts/gen.py
+++ b/scripts/gen.py
@@ -216,12 +216,15 @@ def copy_mbusb_dir_usb(usb_disk):
         log('multibootusb directory already exists. Not copying.')
 
     if not os.path.exists(os.path.join(usb_mount_path, 'EFI', 'BOOT', 'multibootusb_grub2.txt')):
+        if not os.path.exists(os.path.join(usb_mount_path, 'EFI', 'BOOT')):
+            log('EFI directory does not exist. Creating new.')
+            os.makedirs(os.path.join(usb_mount_path, 'EFI', 'BOOT'), exist_ok=True)
         try:
             log('Copying EFI directory to ' + usb_mount_path)
             shutil.copytree(resource_path(os.path.join("data", "EFI")), os.path.join(usb_mount_path, "EFI"))
             result = True
         except:
-            log('multibootusb directory could not be copied to ' + usb_mount_path)
+            log('EFI directory could not be copied to ' + usb_mount_path)
             result = False
     else:
         log('EFI directory already exist. Not copying.')
diff --git a/scripts/mbusb_gui.py b/scripts/mbusb_gui.py
index 4fb68fd..3b3ae55 100644
--- a/scripts/mbusb_gui.py
+++ b/scripts/mbusb_gui.py
@@ -346,24 +346,30 @@ Are you SURE you want to enable it?",
         """
 
         self.ui_disable_controls()
-
         if platform.system() == "Linux" or platform.system() == "Windows":
+            if self.ui.check_install_sys_all.isChecked() or self.ui.check_install_sys_only.isChecked():
+                if platform.system() == 'Linux' and config.usb_disk[-1].isdigit() is False:
+                    gen.log('Selected USB is a disk. Please select a disk partition from the drop down list')
+                    QtWidgets.QMessageBox.information(self, 'No Partition...!',
+                                                      'USB disk selected doesn\'t contain a partition.\n'
+                                                      'Please select the partition (ending '
+                                                      'with a digit eg. /dev/sdb1)\nfrom the drop down list.')
 
-            if self.ui.install_sys_all.isChecked() or self.ui.install_sys_only.isChecked():
-                log("Installing default syslinux on ", config.usb_disk)
-                ret = syslinux_default(config.usb_disk)
-                if ret is True:
-                    if self.ui.install_sys_all.isChecked():
-                        log("Copying multibootusb directory to " + config.usb_mount)
-                        for dirpath, dirnames, filenames in os.walk(resource_path(os.path.join("tools", "multibootusb"))):
-                            for f in filenames:
-                                log("Copying " + f)
-                                shutil.copy(resource_path(os.path.join(dirpath, f)), os.path.join(self.usb.get_usb(config.usb_disk).mount, "multibootusb"))
-                    QtWidgets.QMessageBox.information(self, 'Install Success...',
-                                                  'Syslinux installed successfully on ' + config.usb_disk)
-                elif ret is False:
-                    QtWidgets.QMessageBox.information(self, 'Install error...',
-                                                  'Sorry. Syslinux failed to install on ' + config.usb_disk)
+                else:
+                    log("Installing default syslinux on " + config.usb_disk)
+                    ret = syslinux_default(config.usb_disk)
+                    if ret is True:
+                        if self.ui.check_install_sys_all.isChecked():
+                            log("Copying multibootusb directory to " + config.usb_mount)
+                            for dirpath, dirnames, filenames in os.walk(resource_path(os.path.join("tools", "multibootusb"))):
+                                for f in filenames:
+                                    log("Copying " + f)
+                                    shutil.copy(resource_path(os.path.join(dirpath, f)), os.path.join(self.usb.get_usb(config.usb_disk).mount, "multibootusb"))
+                        QtWidgets.QMessageBox.information(self, 'Install Success...',
+                                                      'Syslinux installed successfully on ' + config.usb_disk)
+                    elif ret is False:
+                        QtWidgets.QMessageBox.information(self, 'Install error...',
+                                                      'Sorry. Syslinux failed to install on ' + config.usb_disk)
             else:
                 QtWidgets.QMessageBox.information(self, 'No selection...',
                                               'Please select one of the option from above.')
diff --git a/scripts/update_cfg_file.py b/scripts/update_cfg_file.py
index 9015e42..93a17ae 100644
--- a/scripts/update_cfg_file.py
+++ b/scripts/update_cfg_file.py
@@ -269,6 +269,8 @@ def update_mbusb_cfg_file(iso_link, usb_uuid, usb_mount, distro):
     Update main multibootusb suslinux.cfg file after distro is installed.
     :return:
     """
+    if platform.system() == 'Linux':
+        os.system('sync')
     log('Updating multibootusb config file...')
     sys_cfg_file = os.path.join(usb_mount, "multibootusb", "syslinux.cfg")
     install_dir = os.path.join(usb_mount, "multibootusb", iso_basename(iso_link))
diff --git a/setup.py b/setup.py
index 550c3a1..3087643 100644
--- a/setup.py
+++ b/setup.py
@@ -46,7 +46,7 @@ setup(
                 ('/usr/share/multibootusb/data/tools/dd', ["data/tools/dd/dd.exe"]),
                 ('/usr/share/multibootusb/data/tools/dd', ["data/tools/dd/diskio.dll"]),
                 ('/usr/share/multibootusb/data/tools/mkfs', ["data/tools/mkfs/mke2fs.exe"]),
-                ('/usr/share/multibootusb/data/EFI', get_data('data/EFI')),
+                ('/usr/share/multibootusb/data/EFI/BOOT', get_data('data/EFI')),
                 ('/usr/share/multibootusb/data/multibootusb', ["data/multibootusb/chain.c32"]),
                 ('/usr/share/multibootusb/data/multibootusb', ["data/multibootusb/bg.png"]),
                 ('/usr/share/multibootusb/data/multibootusb', ["data/multibootusb/extlinux.cfg"]),
diff --git a/stdeb.cfg b/stdeb.cfg
deleted file mode 100644
index b3fe20d..0000000
--- a/stdeb.cfg
+++ /dev/null
@@ -1,7 +0,0 @@
-[DEFAULT]
-                      Package: multibootusb
-                      Depends3: python3-pyqt5, parted, util-linux, mtools, python3-dbus, p7zip-full, python3-six
-                      Build-Depends: python3-all
-                      Section: system
-                      XS-Python-Version: = 3.5
-                      Debian-Version: 1
\ No newline at end of file