There are probably more than 1 hidden folder in IE for any given system.
To date, I have found 3 such hidden folder on my system.
C:\Users**{User-ID}**\AppData\Local\Microsoft\Windows\INetCache\Low\IE\
I found the 1st in folder IE when attempting to find a lost file. Realizing that IE was showing NO folders, I have started picking files in the 1st hidden folder and doing searches on them. Most files in the hidden folders are found only there. However, some are in multiple places. Again, to date, I have found 3 such hidden folders on my system, all having 8-character names comprised of capital letters & integers.
None of the file so found have any personal data (i.e. financial records or password file).
However, I search for those file and have found the in other places!
I refer to a book titled "Windows 8 Hacks" by Preston Gralla, O’Reilly Press, CA.
The hacks are apparently applicable to Windows 10.
The book describes how to create 2 special folders that will list ALL system and 3-rd party apps on your system.
I expect the hackers will know where all this stuff is, so why does Microsoft hide it (and not mention it) in their documentation***?*** They will be criminally responsible when anything happens on mine***!***