My acer aspire one says is missing or corrupt

A system32 file is a program file for your 32bit OS (Operating System) you could attempt a system restore from your start menu by finding the system folder and rolling your PC back to an earlier date, another last resort alternative is to reinstall your system or use your restore partition to reset your acer to factory settings by pushing F10 or F11 (dont remember which) when your system is booting up