How to Fix a Full SSD on Windows

What Causes This?

A full SSD on Windows is usually caused by a buildup of temporary files, old Windows update files, app caches, downloads, and large personal files like videos or game installs. Over time, programs also leave behind leftover data you no longer need. Because SSDs are often smaller than traditional hard drives, they can fill up quickly even with normal daily use.

Common Symptoms

• Windows warns that your drive is low on disk space
• Your PC feels slower than usual, especially when opening apps or saving files
• Windows updates fail or won’t install
• Apps crash, freeze, or refuse to download new files
• You can’t install games, programs, or large files

How to Fix It Manually

1. Check what’s using space

   • Press Windows + I to open Settings
   • Go to System > Storage
   • Wait for Windows to calculate usage, then review categories like Apps, Temporary files, Documents, and Other
   • Click the largest categories to see where space is being used

2. Delete temporary files

   • In Settings > System > Storage, click Temporary files
   • Check items you want to remove, such as:
     • Temporary files
     • Delivery Optimization Files
     • Thumbnails
     • Windows Update Cleanup
     • Recycle Bin
   • Be careful with Downloads — only select it if you’re sure you don’t need those files
   • Click Remove files

3. Empty the Recycle Bin and clean Downloads

   • Right-click the Recycle Bin on your desktop and choose Empty Recycle Bin
   • Open File Explorer with Windows + E
   • Go to your Downloads folder and sort by Size
   • Delete large files you no longer need, or move them to an external drive or cloud storage

4. Uninstall large apps and games

   • Press Windows + I and open Settings
   • Go to Apps > Installed apps
   • Sort by Size
   • Uninstall programs, games, or apps you no longer use
   • If you use game launchers like Steam, also check their library folders for large installed games

5. Move personal files off the SSD

   • Open File Explorer and check folders like Videos, Pictures, Desktop, and Documents
   • Move large files to:
     • An external drive
     • Another internal drive
     • OneDrive, Google Drive, or similar cloud storage
   • If you have another drive, you can also change where new files are saved in Settings > System > Storage > Advanced storage settings > Where new content is saved

6. Turn on Storage Sense

   • Open Settings > System > Storage
   • Turn on Storage Sense
   • Click Storage Sense to configure it
   • Set Windows to automatically clean temporary files and empty the Recycle Bin on a schedule

7. Use Disk Cleanup for extra system files

   • Press Windows, type Disk Cleanup, and open it
   • Select your C: drive and click OK
   • Click Clean up system files
   • Select items like Windows Update Cleanup, Temporary Internet Files, and Device driver packages
   • Click OK, then Delete Files

Fix It Automatically with Kudu

If you don’t want to dig through storage menus and cleanup tools yourself, Kudu can scan your PC for junk files, temporary data, and other space-wasting clutter automatically. It helps you quickly reclaim SSD space without guessing what’s safe to remove, and it can make routine cleanup much easier.

Download Kudu Free →