Hello, guys. I had to reset my old laptop because it was kinda dying with a lot of thrash on the files, but because of that now it says that my 1 TB Hard drive has only 363 Gb free of 917 Gb. Now, this PC doesn't show on the C drive any 554 Gb on use; it doesn't show any partitions or unallocated. So I don't know what is happening.