: Windows uses a service called Sysmain (formerly Superfetch) to pre-load frequently used files into RAM for faster performance. This can result in several gigabytes appearing as "in use" even when the computer is idle, but the system will automatically free this space if a new program needs it. 2. Mobile Device Storage Cache
On mobile platforms, you may find an "informative report" indicating that is occupied by cache files .
: Enterprise tools like TeamConnect Business Intelligence (v6.1) and XIOS 6.1 have specific reporting requirements for hardware and data reduction.