Surrouding the setting of the BASE_PATH within double quotes in the o3de.bat script. This allows to allow paths with spaces in it leading to the engine root directory to work properly when running the script

scripts/o3de.bat

@@ -12,15 +12,15 @@ REM
 
 pushd %~dp0%
 CD %~dp0..
-SET BASE_PATH=%CD%
+SET "BASE_PATH=%CD%"
 CD %~dp0
-SET PYTHON_DIRECTORY=%BASE_PATH%\python
+SET "PYTHON_DIRECTORY=%BASE_PATH%\python"
 IF EXIST "%PYTHON_DIRECTORY%" GOTO pythonPathAvailable
 GOTO pythonDirNotFound
 :pythonPathAvailable
 SET PYTHON_EXECUTABLE=%PYTHON_DIRECTORY%\python.cmd
 IF NOT EXIST "%PYTHON_EXECUTABLE%" GOTO pythonExeNotFound
-CALL "%PYTHON_EXECUTABLE%" %BASE_PATH%\scripts\o3de.py %*
+CALL "%PYTHON_EXECUTABLE%" "%BASE_PATH%\scripts\o3de.py" %*
 GOTO end
 :pythonDirNotFound
 ECHO Python directory not found: %PYTHON_DIRECTORY%