Attempting to help my colleague out with his laptop here, the machine is behaving absolutely fine excluding one persistent fault.
Whenever a 'cmd' command is given in the Run window, Windows returns a "cmd is not a valid Win32 application"
I can however access the Windows command prompt via the Start menu. Once in the command prompt, commands such as 'ping' etc. return errors such as "C:\WINDOWS\System32\ping.com is not a valid Win32 application"
This is a relatively new problem and I'm slightly baffled, any help would be really appreciated. Is this malware or a windows corruption?
Thanks in advance,
N.B System is running XP SP2, I can see avast! anti-virus is running and I'm afraid without any more specific questions I don't know what you need to know.