I have Windows 11 but this problem has been persisting since Windows 10. File Explorer shows wrong size very often and a lot of times prevent downloads and program installations. Yesterday I installed a game which was 54GB. I had 129GB of space free on my disk. After installation explorer was showing only 16 GB left. After I started my Laptop today now there is 75GB free disk space. Yesterday I wanted to download something which was of 20GB but was unable to do so because of that problem. This same stuff happens when I download something. Disk shows a lot of free space but fills even before download completes(download size is way smaller than free disk space). How to resolve this issue?