---
id: tuhi-assistant.why-does-tuhi-say-i-need-a-fast-drive
url: https://storagestudio.us/faq/tuhi-assistant/why-does-tuhi-say-i-need-a-fast-drive
category: "Tuhi, your storage assistant"
subcategory: "What Tuhi knows"
question: "Why does Tuhi say moving big apps needs a fast external drive?"
alt_questions:
  - "Tuhi says connect a drive"
  - "Can Tuhi free space without an external drive?"
  - "I don't have an external drive, can Tuhi still help?"
short_answer: "Moves need somewhere to put things, so they need a fast external drive set up in Storage Studio. Without one you can still clear caches, reclaim old local backups and keep cloud files online-only."
tags: ["tuhi", "external drive", "moving apps"]
related: ["https://storagestudio.us/faq/tuhi-assistant/which-screens-can-tuhi-open", "https://storagestudio.us/faq/tuhi-assistant/do-i-need-to-clean-my-mac-ask-tuhi"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# Why does Tuhi say moving big apps needs a fast external drive?

Moving large apps and folders off your Mac needs somewhere to put them, so those suggestions need a fast external drive connected and set up in Storage Studio. Tuhi says so rather than offering a move that can't happen.

Without a drive you can still clear caches and rarely-used files, reclaim old local backups and keep cloud files online-only. Connect a drive later and the moving options appear. See [external drives](https://storagestudio.us/faq/external-drives/).