File Extension PF
PF is a file extension which is used by the Prefetch file which is also known as Scenario by other people. The extension was created by the Microsoft Corporation. The Prefetch files are basically a list for resources. Every time there is an execution of a program Windows XP tries to locate a prefetch file that had been in existence before. If the prefetch file is available it will be used to make the rate of loading of the application speedier. There will also be updating of the file after the accessing; this will enable loading time needed to drop due to the size of application used.

In the event that an application lacks a related prefetch file, one will be created for it by Windows XP. The storage of the files is usually in the \%windir%\ prefetch directory. The whole of this process however depends on service of the Task Scheduler. There cannot be any updating or reading of the files if the service for Task Scheduler is not running as there will not be usage of the prefetch mechanism. The specification type for file extension PF is system file type.
Free registry scan
Another program that makes use of the PF extension is Unknown Apple II File which can be located on Golden Orchard Apple II CD Rom. Others are Progress Database Parameter File created by Progress Software Corporation and Monitor or Printer Profile File. ICC Profile, Archive and Alladin Systems Private Files Encrypted File programs also fall under this category.

Users who worry about their system’s safety need not worry when working with file extension PF. The files are not Trojans, Malware, or viruses which are known to harm people’s systems. The files are also easy to use and one does not have to be a file extension expert to use them. Another important attribute of the file is easily availability. Interested parties can easily get the files from the internet.
Free registry scan
A user should be on the look out for outdated drivers as they work with .PF files as they are known to cause slowdowns and errors. A scan will help remove them. A free registry scan can help remove registry error. The user should also remove errors brought by inappropriate association of programs as well using a scan. To improve the performance of the system’s memory or CPU the user should run a free performance scan in their computer system.