Don said:
What are these files and can they be deleted. All the
files in this folder end with pf.
From:
http://www.microsoft.com/whdc/system/sysperf/benchmark.mspx
Boot Prefetching
Windows XP speeds up system boot by observing the code and data needed each
time the system is booted and prefetching the necessary file contents early
in the boot process. This prefetching is not done until the third boot of
the system, when sufficient information is available to make the prefetching
most effective. The files observed during system boot will be used in the
disk layout process mentioned above. Additional information on the
prefetcher and the Windows XP boot process can be found at Fast Boot/Fast
Resume for the Windows Platform.
Application-Launch Prefetching
Windows XP also uses prefetching when launching applications. The files and
the contents of the files accessed by each new process are observed and
recorded. No prefetching can be done for the first launch of an application,
so first launches are often considerably slower than subsequent launches.
About 85% to 90% of the improvement is realized after just one launch of an
application, with the remaining speed improvement coming after the system
has had an opportunity to adjust the disk layout with information specific
to this application.
http://www.theeldergeek.com/prefetch_parameters_-_altering.htm
Backup the registry if you decide to try these tweaks.
