Here you know How to Delete a Blog Post on a Blogger Archive Page ?
- Sign in on blogger.com.
- Click on "View Blog".
- Click on "Customize".
- Click on "Posting".
- Click on the "Edit Posts".
- Search the old posts you want to delete from archive.
- Click on "delete".
- Click all to see all posts.
- Check the content of posts you going to delete.
- deleted posts cannot be retrieved.