HDiskPerf (64-bit) v1.4

HDiskPerf is a free monitoring utility that can monitor the access patterns of drives in Windows.

It gives a visual graph and data about the access pattern of a partition on a HDD, or an entire hark disk. It can also be used to do the same with a CD or DVD disc.

To monitor multiple drives / discs, you need to run multiple instances of HDiskPerf.

This is the 64-bit version of HDiskPerf. A 32-bit version of HDiskPerf is also available for 32-bit versions of Windows.

NOTE: Windows 64-bit operating systems, by default, require that all drivers be signed. In order to use PerfWatch with 64-bit Windows, you need to press F8 during boot (tap repeatedly from after the time the BIOS screen disappears and before the Windows logo appears) and disable driver signature enforcement.