Missing space on C drive

So my drive was at 300gb after using unreal for a while I noticed I am missing a lot of space. It went from 300gb free space to 239 I found some VaultCache on C drive but i managed to get only to 260gb. I installed Unreal on completely different drive and It can’t be projects that are taking that space because I checked it. So I wanna ask where is like all the cache or hidden files epic games or unreal engine stores. I really want that 40gb back because its a lot because I don’t have that much space on SSD.

Use a tool like SpaceSniffer to see what’s going on