The convenient tool SpaceSniffer will help us with this. To use, you must:
1️⃣ After downloading, unpack the program from the archive.
2️⃣ After starting the program, a window will appear, in it we select the disk partition on which you need to find where the free space went.
3️⃣ The program will scan the selected disk, show clearly and with numbers which folder or file takes up the most space. Folders are displayed in beige, files are displayed in blue.
It is very convenient that you can delete files and folders right in the program interface. To do this, call the context menu by right-clicking on the desired object.