Siri doesn't talk on iMac

You can save you and us a lot of time and effort of playing 20 questions if you do the following:

Please navigate to the Mac App Store or navigate to www.Etrecheck.com and download the free version of EtreCheck. Once you have you downloaded the app and installed it, please run the report and save it. This report will help us get a good idea what has been installed on your system and help us be able to diagnose what may be wrong.

When you have your report, you can attach it when you reply to this message and we can then review it and help you determine what is needed to get your system running well again. 

For instructions on how to download your EtreCheck report and attach it to your reply to this message please click https://discussions.apple.com/docs/DOC-250000211

Please ensure Siri has been enabled on your iMac. Please verify in System Preferences and then ensure your volume is turned up.

Okay, by chance are there any antivirus, cleaning, security or any other third party "maintenance" apps installed?

👍

Mike, Sid, and Siri live happily ever after. Thanks for the update.