When your drive fills up, a handful of huge files, such as old videos, disk images, game files or forgotten downloads, are often the culprits. Windows 11 can find them for you with File Explorer’s size filter, the Storage page in Settings, and Storage Sense recommendations. This guide shows each method, how to decide what’s safe to delete, and free tools that map your whole drive.
Quick Answer
Open File Explorer, click This PC (or a drive), type size:gigantic in the search box and press Enter. Windows lists files larger than 4 GB. Sort by Size to see the biggest first. Use size:huge for 1–4 GB files.
Method 1: File Explorer Size Search
- Press Windows + E and click This PC or the drive (for example C:).
- Click the search box and type a size filter:
- size:gigantic for files over 4 GB
- size:huge for 1–4 GB
- size:large for 128 MB–1 GB
- Or exact sizes, such as size:>2GB or size:>500MB
- Press Enter and wait for the search to finish.
- Switch to Details view (View > Details) and click the Size column to sort.
Right-click a result and choose Open file location to see where it lives. Searching the whole drive can take a while if the folder isn’t indexed.
Method 2: Settings > Storage
- Go to Settings > System > Storage.
- Click Show more categories to see what’s using space (Apps, Videos, Temporary files, Other).
- Click a category to drill in; Other lists the largest folders on the drive.
- Under Storage management, open Cleanup recommendations to see Large or unused files Windows suggests removing.
Method 3: Storage Sense
Turn on Storage Sense in Settings > System > Storage to automatically clear temporary files, empty the Recycle Bin and remove old Downloads on a schedule. Click Storage Sense to configure it and Run Storage Sense now.
Method 4: Free Disk Usage Tools
Visual tools such as WinDirStat, WizTree or TreeSize Free scan the drive and show folders and files as a size map, making hidden space hogs obvious. Download them only from the developers’ official sites.
What’s Safe to Delete?
| Usually safe (after checking) | Don’t delete manually |
|---|---|
| Old downloads, installers and ISO files | pagefile.sys, hiberfil.sys, swapfile.sys |
| Videos you’ve backed up elsewhere | Anything in C:\Windows |
| Old virtual machine or backup images you no longer need | Program Files folders (uninstall apps instead) |
| Temporary files via Settings | System Volume Information |
To shrink hiberfil.sys, run powercfg /hibernate off in an admin terminal (this disables hibernation and Fast startup). To reclaim space from games and apps, uninstall them in Settings > Apps > Installed apps.
Show Hidden Large Files
Some large files are hidden. In File Explorer, click View > Show > Hidden items before searching. System files remain protected unless you change folder options, which isn’t recommended.
Frequently Asked Questions
Why is “Other” using so much space?
It’s usually large files in non-standard folders, like game libraries or VM images. Click Other in Storage to see the folders.
Does deleting files free space immediately?
Only after emptying the Recycle Bin, or press Shift + Delete to delete permanently (be careful).
Does this work on Windows 10?
Yes. File Explorer’s size filters and Settings > System > Storage are available in Windows 10 too.
Summary
- Search size:gigantic in File Explorer and sort by Size.
- Check Settings > System > Storage and Cleanup recommendations.
- Turn on Storage Sense.
- Delete only files you recognize, and back up important ones first.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.