Internet Explorer downloads a file but then as soon as it finishes downloading and starts to be checked before entering it into my computer, IE shuts down and message comes up "this file cannot be downloaded" no explanation as to why it can't be downloaded. I've tried everything I could find to try and nothing seems to work. I have made sure file downloads was enabled, I have even reset IE to defaults. I'm thinking I may have a corrupted system file in the security files. I ran the system file checker and it corrected some files but said there were others that could not be corrected. How do I find the file or files that are corrupted and replace them? Please keep in mind that at 82 yrs. old, I am not very computer savvy, so I will need any response in very simple terms.