Error messages on all programs
 

Every time I try to open a program in windows I receive an error message. It
doesn't matter which one I try to open, I receive a different error message.
I was able to run my Norton's Anti virus software by chance and it showed
that there were no messages. The employee did receive an e-mail that had a
possible virus, but the e-mail and attachment were not opened and was
deleted. I am running out of ideas.

Thanks