_{This post only covers the installation of adb or fastboot on windows , mac or linux systems. To set up adb or fastboot scroll to the end to find links or click here}

_{Tip: Disable any security keys, patterns or passwords you have set on your device before trying out any installations. Having a password or lock can cause issues in some installations.You can always set them up later.}

On Windows PCs

• Download the Windows zip from Google.
• Extract it to a folder on your system – for example, %USERPROFILE%\adb-fastboot
• On Windows 7/8:
  • From the desktop, right-click My Computer and select Properties
  • In the System Properties window, click on the Advanced tab
  • In the Advanced section, click the Environment Variables button
  • In the Environment Variables window, highlight the Path variable in the Systems Variable section and click the Edit button
  • Append ;%USERPROFILE%\adb-fastboot\platform-tools to the end of the existing Path definition (the semi-colon separates each path entry)
• On Windows 10:
  • Open the Start menu, and type “advanced system settings”
  • Select “View advanced system settings”
  • Click on the Advanced tab
  • Open the “Environment Variables” window
  • Select the Path variable under “System Variables” and click the “Edit” button
  • Click the “Edit Text” button
  • Append ;%USERPROFILE%\adb-fastboot\platform-tools to the end of the existing Path definition (the semi-colon separates each path entry)
• Install the universal adb driver, and reboot.

On macOS

1. Download the macOS zip from Google.
2. Extract it to a folder on your system – for example, ~/adb-fastboot.
3. Add the following to ~/.bash_profile:if [ -d "$HOME/adb-fastboot/platform-tools" ] ; then export PATH="$HOME/adb-fastboot/platform-tools:$PATH" fi
4. Log out and back in.

On Linux

1. Download the Linux zip from Google.
2. Extract it to a folder on your system – for example, ~/adb-fastboot.
3. Add the following to ~/.profile:if [ -d "$HOME/adb-fastboot/platform-tools" ] ; then export PATH="$HOME/adb-fastboot/platform-tools:$PATH" fi
4. Log out and back in.
5. You may also need to set up udev rules: see this repository for more info.
   
   
   Click here to learn how to set up adb or fastboot