When I try to run a Symantec fix here, I get the following error:
16 bit MS-DOS Subsystem The NTVDM CPU has encountered an illegal instruction. CS:393a IP:393a OP:ff ff ff ff ff Choose 'Close' to terminate the application.
How can I debug this?
The download is corrupt. The MS-DOS subsystem shouldn't be trying to run that file; It's a Windows executable. For some reason it's not being detected as a valid Windows application and being run in MS-DOS mode, but it's not a DOS application so it crashes.
Just re-download the EXE or complain to Symantec