iPhone users often notice that a huge portion of their storage is taken up by System Data or Other Storage, which includes caches, logs, temporary files, Siri data, updates, and more. Unfortunately, Apple doesn’t provide a direct “Clear System Storage” button — but there are several methods that effectively reduce this space.

In this complete guide, you’ll learn how to clear system storage on iPhone and also how to clear system and other storage without factory resetting your device.

📌 What Is System Storage on iPhone?

System Storage includes:

• Temporary files
• App caches
• iOS system logs
• Safari browsing data
• Downloads & update files
• Siri and voice data
• System-level media & temp files

When these files build up, you start seeing the dreaded “iPhone Storage Full” warning.

✅ 1. Restart Your iPhone (Instant System Cleanup)

This is the fastest way to clear hidden temp files and small caches.

Steps

1. Press and hold the Power button + Volume Up
2. Slide Power Off
3. Wait 10 seconds
4. Turn the iPhone back on

A restart clears several background cache files safely.

🧹 2. Clear Safari Cache & Website Data

This can reduce up to 1–3GB instantly.

Steps

1. Go to Settings
2. Tap Safari
3. Tap Clear History and Website Data
4. Confirm

This helps reduce “Other” category significantly.

📱 3. Offload Unused Apps (Highly Effective)

This removes the app but keeps its data safe.

Steps

1. Go to Settings > General > iPhone Storage
2. Select an app
3. Tap Offload App

This is helpful when you want to clear system and other storage on iPhone without deleting the app completely.

📸 4. Clear Photos & Video Cache

iPhone Photos app stores duplicates, filters, edits, and hidden caches.

Steps

1. Open Photos → Go to Recently Deleted
2. Delete everything
3. Turn on Optimize iPhone Storage
   • Go to Settings > Photos
   • Enable Optimize iPhone Storage

This saves massive space, especially in older iPhones.

✨ 5. Delete iMessage Cache (Huge Space Saver)

Message attachments consume many gigabytes.

Steps

1. Go to Settings > General > iPhone Storage
2. Tap Messages
3. Review Photos, Videos, GIFs, Stickers, Documents
4. Delete unnecessary files

🔄 6. Update iOS to Clear System Storage Automatically

System updates remove old update files and free space.

Steps

1. Go to Settings > General > Software Update
2. Install latest update

iOS removes old system data after updating.

🗂️ 7. Reset All Settings (Clears System Cache Safely)

This resets system-level caches without deleting your data.

Steps

1. Go to Settings > General > Transfer or Reset iPhone
2. Tap Reset
3. Select Reset All Settings

✔ No photos or apps are deleted
✔ System storage reduces noticeably

🧱 8. Backup & Restore (Deep Cleanup Method)

This removes all hidden system junk and temporary files.

Steps

1. Back up your iPhone via iCloud or Finder/iTunes
2. Go to Settings > General > Transfer or Reset iPhone
3. Tap Erase All Content and Settings
4. Restore backup

This gives the largest reduction in System & Other storage.

🔗 Helpful Internal Links

• How to Share WiFi Password on iPhone
  https://multicaretechnical.com/how-to-share-wifi-password-on-iphone-complete-step-by-step-guide
• How to Reduce Space Between Lines in Word
  https://multicaretechnical.com/how-to-remove-reduce-space-between-lines-in-word-complete-guide
• How to Clear PC Cache on Windows 11
  https://multicaretechnical.com/how-to-clear-computer-cache-in-windows-11-cmd-run-shortcut-chrome-ram-cache-discord

🎯 Conclusion

Clearing system storage on your iPhone is easy once you understand where the hidden files are stored. Whether you want to reduce temporary files, delete caches, or remove “Other” storage, the steps above will help free gigabytes of space instantly.

Now you know how to clear system storage on iPhone and exactly how to clear system and other storage on iPhone without losing data.

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❓ FAQs

1. Why is my iPhone system storage so high?

Because of cached files, logs, app data, downloads, Siri files, and update leftovers.

2. Is it safe to clear system data on iPhone?

Yes, using Apple’s built-in settings like Safari cleanup, restart, offloading apps, and message cleanup is completely safe.

3. Will resetting my iPhone reduce system storage?

Yes, a backup-and-restore clears the most hidden system files.

4. How often should I clear iPhone system storage?

Every 2–3 months for best performance.

5. Does clearing Safari cache affect passwords?

No, saved passwords and autofill data remain safe in iCloud Keychain.