Yes, it does. Download WinDirStat from here:
https://www.fosshub.com/WinDirStat.html/windirstat1_1_2_setup.exe (if you want, you can navigate through their site manually to get to that page if you don't trust that URL for whatever reason, here
https://windirstat.net/)
WinDirStat is basically a program that goes through a drive and makes an interactive graphic showing you what files are taking up the most space. You'll be able to determine what's taking up all of the space on your SD card with it.
Once you install WinDirStat, open it up, and select "Individual Drives" in the menu that immediately pops up. After that, select the SD card.
View attachment 69552
Once the SD card is selected, press OK, and let it start scanning. It shouldn't take too long. You'll know it's done when a bunch of squares at the bottom of the program pop up. When that's done, let me know. (If you're curious, this doesn't touch the data on the SD card)