Directory Opus is slow when refreshing a folder or drive

[Leo]

It's probably a shell extension or antivirus.

This recent thread has suggestions:

Opus 10 opens new listers very slow (40-60 seconds)

I recently re-installed my workstation (home PC) with Windows 7 Pro (64-bit). After the install, I usually get the drivers setup and running, then patch the OS with all current service packs and update, then start installing application. After my t…

This FAQ also has other suggestions and details, which are definitely worth a try:

Crash, exit or high CPU when viewing certain directories

See also: Crash, exit or high CPU usage when right-clicking certain files How to find components causing high CPU usage How to find components causing memory leaks Crash dumps for bug reports General slowdown or instability investigation steps Su…