Why is this not working correctly for you?

is there any option to delete user which are registerd on specific date ?
for example i want delete user which are registerd on 11/06/2013 ?

Use the User registered between X and X days ago option. Count the number of days back

Can we get a option where Registration Date equals Last Activity Date?

I'm also having this issue and running 4.2.1

Um, so how does this work? I have like 30,000 registered users in the past four days. I want to delete all of them, and their posts and threads.

I run the test then click Delete, OK and it says Invalid Action Specified, then No Users Matched Query, then it goes to the regular Prune page.

I don't know; maybe it's timing out - try smaller chunks if possible. But did you really get THIRTY THOUSAND junk registrations in the last 4 days?????

I'll try a smaller one.

Yeah, like 28,000 registrations and 200,000 posts. On SkiMRV.com. Working it now ... slowly. One spam account alone had 48,000 posts.

The test thing doesn't seem to even work on 4.2.2?

then u are doing something wrong because it works just fine with 4.2.2