I have reinstalled the IDE several times and have checked to see Java is up to date. Running an old 32 bit system and Vista. It looks like the problem may be in the 32 bit system. If so, is there a 32 bit IDE for Arduino?
C:\Program Files\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files\Arduino\hardware -tools C:\Program Files\Arduino\tools-builder -tools C:\Program Files\Arduino\hardware\tools\avr -built-in-libraries C:\Program Files\Arduino\libraries -libraries C:\Users\Mac\Documents\Arduino\libraries -fqbn=arduino:avr:uno -ide-version=10813 -build-path C:\Users\Mac\AppData\Local\Temp\arduino_build_458135 -warnings=none -build-cache C:\Users\Mac\AppData\Local\Temp\arduino_cache_966761 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=C:\Program Files\Arduino\hardware\tools\avr -prefs=runtime.tools.arduinoOTA-1.3.0.path=C:\Program Files\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude.path=C:\Program Files\Arduino\hardware\tools\avr -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=C:\Program Files\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc.path=C:\Program Files\Arduino\hardware\tools\avr -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino7.path=C:\Program Files\Arduino\hardware\tools\avr -verbose C:\Users\Mac\AppData\Local\Temp\untitled1070331742.tmp\sketch_oct05a\sketch_oct05a.ino
processing.app.debug.RunnerException
at cc.arduino.Compiler.callArduinoBuilder(Compiler.java:317)
at cc.arduino.Compiler.loadPreferences(Compiler.java:216)
at cc.arduino.Compiler.build(Compiler.java:175)
at processing.app.SketchController.build(SketchController.java:664)
at processing.app.Editor$BuildHandler.run(Editor.java:1632)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Cannot run program "C:\Program Files\Arduino\arduino-builder": CreateProcess error=193, %1 is not a valid Win32 application
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
at processing.app.helpers.ProcessUtils.exec(ProcessUtils.java:26)
at cc.arduino.Compiler.callArduinoBuilder(Compiler.java:297)
... 5 more
Caused by: java.io.IOException: CreateProcess error=193, %1 is not a valid Win32 application
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.(ProcessImpl.java:386)
at java.lang.ProcessImpl.start(ProcessImpl.java:137)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
... 7 more