# What happens when I delete a file on my filesystem? **URL:** \ **Category:** Support\ **Created:** [September 3, 2026, 1:32am UTC](https://kopia.discourse.group/t/what-happens-when-i-delete-a-file-on-my-filesystem/8984 "2026-09-03T01:32:57Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![elel](https://avatars.discourse-cdn.com/v4/letter/e/ecae2f/32.png) [@elel](https://kopia.discourse.group/u/elel)\ **Post date:** [September 3, 2026, 5:54am UTC](https://kopia.discourse.group/t/what-happens-when-i-delete-a-file-on-my-filesystem/8984/2 "2026-09-03T05:54:47Z")
I think your question has more to do with understanding snapshot retention policies than deletion. Here is a post that the community found very informative and the original post within that started the discussion: > [@Kopia Snapshot Retention Policies Demystified](https://kopia.discourse.group/t/kopia-snapshot-retention-policies-demystified/2941): > > With the suggestion of @JayKay729, I decided to create a dummy backup for testing how Kopia choose which backups to save, but in this experiment, I learned much more than I initially planned. In this post, I would like to share these discoveries, along with some examples to demonstrate them. This is a supplement to [his post](https://kopia.discourse.group/t/retention-policies-documentation/2488), so I’ll jump straight to those he hasn’t covered yet. Numbers in Snapshot Retention Except for Latest Snapshots, Kopia considers the number you write here as dura… --- _[View the full topic](https://kopia.discourse.group/t/what-happens-when-i-delete-a-file-on-my-filesystem/8984)._