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How to Free Up Storage Space on Windows | Tips for Recovering Disk Space

Windowsのストレージ不足を解消する方法 | 空き容量を増やすコツ

When your Windows storage fills up, you may not be able to save files and your PC can slow down noticeably. Fortunately, a combination of deleting files, tidying up, and adjusting settings can reclaim plenty of space. Here are the most effective methods in the order you should try them.

Table of Contents

  1. Start by Checking Your Current Usage
    1. View Your Storage Breakdown
  2. Quick Deletions and Cleanup
    1. Delete Unnecessary Files
    2. Uninstall Unused Apps
    3. Empty the Recycle Bin
    4. Clean Up the Downloads Folder
    5. Find and Remove Large Files
  3. Use Built-in Windows Tools
    1. Run Disk Cleanup
    2. Enable Storage Sense
    3. Delete Temporary Files
  4. Offload Files to the Cloud
    1. Move Files to OneDrive
    2. Use Other Cloud Storage Services
  5. Use a Cleanup App
    1. Use Wise Care 365
  6. Long-Term Solutions
    1. Use External Storage
    2. Consider Upgrading Your PC
  7. Summary: Recommended Order

Start by Checking Your Current Usage

View Your Storage Breakdown

Before you start deleting anything, find out what's eating up your space. Knowing where the storage is going makes cleanup far more efficient.

  1. Go to "Settings" → "System" → "Storage"
  2. Review the breakdown by category

You'll see how much space is taken up by apps, temporary files, and other data. Use this as a guide to decide where to focus your cleanup efforts.

Quick Deletions and Cleanup

Delete Unnecessary Files

Start by removing documents, images, and videos you no longer need. Video files in particular tend to be large, and deleting just a few can free up a surprising amount of space. Don't forget to check your Desktop and Documents folders — they often accumulate more clutter than you'd expect.

Uninstall Unused Apps

Apps you installed but rarely use still take up storage. Go to "Settings" → "Apps" → "Installed apps" and sort by size to quickly identify the biggest offenders.

Empty the Recycle Bin

Deleting a file only moves it to the Recycle Bin — it doesn't actually free up disk space. Right-click the Recycle Bin on your desktop and select "Empty Recycle Bin" to permanently remove those files. If you haven't done this in a while, you may be surprised at how much space you recover.

Clean Up the Downloads Folder

Files downloaded from browsers and apps tend to pile up in the Downloads folder. Open it in File Explorer and remove anything you no longer need. Old software installers are common culprits that sit there long after the program has been installed.

Find and Remove Large Files

Use File Explorer's sorting features to track down oversized files. Go to "View" → "Sort by" → "Size" to arrange files from largest to smallest. This makes it easy to spot and remove large files you no longer need.

Use Built-in Windows Tools

Run Disk Cleanup

Windows includes a built-in Disk Cleanup tool that can remove several types of unnecessary files at once.

  1. Search for "Disk Cleanup" in the Start menu and open it
  2. Select the drive you want to clean up
  3. Check the file types you want to remove and click "OK"

For even more space, click "Clean up system files" to include additional categories like old Windows Update files.

Enable Storage Sense

Storage Sense automatically deletes temporary files and Recycle Bin contents to keep your storage in check.

  1. Go to "Settings" → "System" → "Storage"
  2. Turn on "Storage Sense"
  3. Click "Configure Storage Sense" to set how often automatic cleanup runs

Delete Temporary Files

Windows creates temporary files that can accumulate over time. You can review and delete them at "Settings" → "System" → "Storage" → "Temporary files." These system-generated temp files are safe to remove.

Offload Files to the Cloud

Move Files to OneDrive

OneDrive lets you move files to the cloud to save space on your PC. It comes preinstalled on Windows, so there's nothing extra to set up. The free tier includes 5 GB of storage. For more space, you'll need a Microsoft 365 subscription.

Use Other Cloud Storage Services

Services like Google Drive and Dropbox can also help offload files from your local storage. Documents you don't access often and backup files are good candidates for moving to the cloud.

Use a Cleanup App

Use Wise Care 365

If the steps above haven't freed up enough space, a dedicated cleanup app can help. There are many options for Windows, but Wise Care 365 is a solid choice that offers plenty of functionality for free.

Wise Care 365 handles registry cleanup, junk file removal, and privacy protection — areas that Windows' built-in tools don't cover well. The free version includes all the essential cleanup features, so it's worth trying before committing to a paid plan.

Long-Term Solutions

Use External Storage

An external HDD or SSD can physically expand your available storage. Moving large files like photos, videos, and backups to external storage can dramatically free up space on your main drive. A portable SSD is convenient for on-the-go use, while a large-capacity HDD works well for home storage.

Consider Upgrading Your PC

If you've tried everything and storage is still chronically tight, upgrading to a PC with more built-in storage is the most practical long-term solution. When shopping for your next machine, aim for at least 512 GB of storage.

Summary: Recommended Order

Here's a summary of the steps in the order you should try them.

  1. Check your storage breakdown to see what's using space
  2. Delete unnecessary files and apps
  3. Empty the Recycle Bin
  4. Clean up the Downloads folder
  5. Find and remove large files
  6. Run Disk Cleanup
  7. Enable Storage Sense
  8. Delete temporary files
  9. Move files to OneDrive or other cloud storage
  10. Use Wise Care 365 for a deeper cleanup
  11. Use external storage
  12. Consider upgrading your PC

In most cases, deleting unnecessary files and using Windows' built-in tools will do the job. If that's not enough, try a cleanup app or external storage to get your space back.