I need the update manager to only download a single package at a time and not try to download multiple packages at once.

My slow internet cannot handle multiple connections; slows the download to a crawl and some packages will reset themselves halfway through when they time-out.

EDIT

When using apt-get update multiple repositories get checked:


When using apt-get upgrade multiple packages are downloaded:



Question: Simple way to delete users account?
Answer: Can You Explain What kind of application you Use? If you use some kind of database with your application then simply run delete query with some specific condition