There is no file system32.exe.
Either you need to go to the opticians to get your eyes tested or you have or have had a virus.
Do you have a virus scanner?
Free online click here check Free AV click here
You could go to start, run, type:
Edit, Find..., type:
Delete all found entries, OF ONLY system32.exe
But before you do that Export the registry, File, Export, Choose a name, Save.
Any problems then double click the saved file...To start again.
Also press Ctrl - Alt - Delete and END PROCESS on any (if any) Processes of system32.exe.