Hi there,
Sorry to hear about your experience. Would you mind sharing the version of the OS & Illustrator? Does it happen while working on a specific file? Are you trying to save files on a local drive or network?
Please make sure you have set up a default printer & it is turned on. set up as default printer and turned on? If not, install a PDF printer. Let us know if it helps.
This information would help us assist you accordingly. Looking forward to your response.
Regards,
Ashutosh