[creatonez]

I thought by filters they quite literally mean the antivirus filters in Defender? Does it strip down some of the Windows file semantics too?

[p_ing]

File system filters are pluggable kernel drivers. For example, ProcMon (Sysinternals tool) monitors file systems via a file system filter -- so fun fact, if you outright disable file system filters on a ReFS volume, you won't get any ProcMon results! This was a 'duh' moment for me.

https://learn.microsoft.com/en-us/windows-hardware/drivers/i...