On what it is possible to implement proactive reading (read ahead)?

Question

Microsoft

Actually, a question. It is necessary that when reading a file from a folder, the entire directory is read into memory, and when reading a block of a file, the entire file is read at once. There are a lot of operatives, answers that this is wrong are not needed.
https://en.wikipedia.org/wiki/Upd
. The programs that I tried - primo cache and super speed cache give the effect, but only on multiple readings.