Deleting Dead User Accounts from Sharepoint Alerts,Assigned to E-Mails ,Workflows

Question

how delete Dead User Accounts from Sharepoint Alerts,Assigned to E-Mails ,Workflows.

Answer 1

Go to the root site of the site collection, Then go to the _catalogs/users/simple.aspx page of the root of the site collection. Click on the user you want to delete, and select delete user from site collection.