ADB full backup Android

  1. Download ADB for Windows: platform-tools-latest-windows.zip
  2. Extract the archive and open a cmd window in that folder to run adb.exe.
  3. Verify the connection:
adb devices
  1. Create the full backup:
adb backup -apk -shared -all -f c:\adb\mybackup.ab

Confirm the backup on your phone when prompted.