MC FolderSize: Quick Guide to Finding Large Folders on Windows

How to Use MC FolderSize to Free Up Disk Space Fast

1. Install and open MC FolderSize

• Download and run the installer from the official site (or your trusted source).
• Launch MC FolderSize; it scans folders and shows their sizes in a tree view.

2. Run a scan of the drive or folder

• Select drive/folder: Choose the drive (e.g., C:) or specific folder to analyze.
• Start scan: Click Scan (or Refresh) and wait—scanning large drives may take several minutes.

3. Sort and find large folders

• Sort by Size: Click the Size column to sort descending.
• Expand tree view: Drill down into top folders to find the largest subfolders.
• Use filters: If available, filter by file type or date to focus on large file categories (e.g., videos, installers).

4. Inspect contents and identify candidates for cleanup

• Right-click > Open folder: Jump to the folder in File Explorer to review files.
• Preview or properties: Check file modified dates and sizes to spot obsolete installers, backups, or large media.
• Temporary and cache folders: Pay special attention to temp, Downloads, and browser cache folders.

5. Safely remove unneeded files

• Backup first: For uncertain files, move them to an external drive or cloud first.
• Delete installers and duplicates: Remove old installers (.exe/.msi), archive files (.zip/.7z), and duplicate files.
• Uninstall large apps: Use Windows Settings > Apps to uninstall programs you no longer need.
• Use Disk Cleanup for system files: Run Windows Disk Cleanup or Storage Sense for system temp files, update caches, and previous Windows installations.

6. Automate and prevent future bloat

• Schedule periodic scans: Re-scan monthly to catch growth early.
• Enable Storage Sense or set limits: Configure Windows Storage Sense to auto-delete temp files and recycle bin contents.
• Move large media to external/cloud storage: Keep bulky video/photo libraries off the main drive.

7. Verify free space and monitor

• Check drive free space: Confirm space freed in File Explorer or Disk Management.
• Repeat if needed: Re-scan with MC FolderSize to ensure the biggest consumers were handled.

Quick safety checklist

• Do not delete system folders (Windows, Program Files) unless you know what they are.
• Backup before mass deletes.
• Empty Recycle Bin after confirming deletes to reclaim space.

Follow these steps to quickly identify and remove large, unnecessary files using MC FolderSize while keeping your system safe.