The 4 Best Free Tools to Analyze Hard Drive Space on Windows

Disk Space Analyzer Max helps you find what the large files on your disk are and clean them. Are you curious about which files occupy most of your disk space? Disk Space Analyzer Max can show you each file on your disk in a straightforward visual way.

WizTree除了有正體中文的的操作界面，使用方式也非常簡單，也提供了免安裝版，容量也不大（約4MB），加上掃描的速度極快，如果用來掃描SSD (固態硬碟)最快只要數秒鐘即可完成，阿正老師強力推薦喔！ WizTree的使用方式相當簡單，只要在左上角選擇要掃描的磁碟機之後，預設會以「樹狀查看」的方式來顯示所有的資料夾，及各種檔案類型所佔的磁碟空間。 下方則會用不同大小及顏色的區塊來顯示檔案的類型的大小，越大的區塊表示檔案或資料夾越大。 只要點擊該區塊就能定位出該檔案的位置及類型。 WizTree還能切換成「

WinDirStat is a disk usage statistics viewer and cleanup assistant for Microsoft Windows clients and servers. On start up, it reads the whole directory tree once and then presents it in three useful views:

In this article, we’ll walk through eight outstanding free disk space analyzer tools that work seamlessly with Windows—from Windows 11 back to older versions.

You can use a disk space analyzer to scan your drive (or just a single folder) and see exactly which folders and files are using space. You can then make an informed decision about what to remove and quickly free up space.