Did you ever run a profile to see what was going on? Or run ProcessMonitor to see what was using the disk etc.? It could be the indexing service for files. The

Did you ever run a profile to see what was going on? Or run ProcessMonitor to see what was using the disk etc.? It could be the indexing service for files. There is the NTFS MFT which is used by tools such as Everything by "void tools", but Windows also has its own Windows Search (WSearch) service which indexes files and contents. I believe this is similar to the Indexing Service found on Windows XP that would give you hopeless results (duplicates between its database and the actual file system). This is meant to make Cortana be able to give you helpful results when you search for things like files locally. I have found it to be slow to type something into the Start menu (just type), particularly compared to the results from Everything (mentioned above) or Apple's Spotlight. It is very odd because Microsoft has its own SQL Server division (and SQLite is free if they want to use that!) as well as embedded SQL Server for file-based database systems yet their start menu search is horribly slow so as to be useless (for me at least). I recommend buying Windows Internals 6 volumes 1 & 2 to understand what is going on, at least under Windows 7. There are not versions released for Windows 10 yet (and will there ever be? It's a constantly moving target).