---
id: troubleshooting.left-alone-couldnt-confirm
url: https://storagestudio.us/faq/troubleshooting/left-alone-couldnt-confirm
category: "Troubleshooting & messages"
subcategory: "Free space and clean-up messages"
question: "Why does a clean-up say some items were \"left alone\"?"
alt_questions:
  - "we couldn't confirm this is really a temporary folder so we left it alone"
  - "we couldn't tell how recently these were used so we left them alone"
  - "the rest turned out to be in use so they were left alone"
  - "why did storage studio skip some files"
short_answer: "Any item Storage Studio couldn't confirm as safe — real cache, not in use, not recently used — is left alone. An unanswered safety check counts as no; later runs often clear them."
tags: ["clean-up", "safety", "skipped"]
related: ["https://storagestudio.us/faq/troubleshooting/nothing-large-enough-to-move-honest-result", "https://storagestudio.us/faq/troubleshooting/no-longer-a-cache-folder"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# Why does a clean-up say some items were "left alone"?

Before clearing anything, Storage Studio confirms it's what it looks like (a real cache or temporary folder), that nothing is using it, and how recently it was used. If any of those checks can't be completed, it leaves the item alone — an unanswered safety question counts as a "no".

Skipped items are usually cleared on a later run, when nothing is holding them.