PF files, i.e. files with the extension PF, only exist in the folder C:\Windows\Prefetch. When an application is opened for the first time, Windows automatically creates a suitable PF file.

If you want to try out new programs or open unknown files, it is best to do this in a particularly secure environment that is separate from the running system: This is exactly what a sandbox ...

If you want to try out new programs or open unknown files, it is best to do this in a particularly secure environment that is separate from the running system: This is exactly what a sandbox offers.

The simplest way to frame the issue is with the ‘three-file rule’, which argues that we can group files for security purposes into three types: the good, the bad and the unknown. Until recently, there ...

Please note unblocking unknown files can increase the risk of your computer being under attack by some malware or viruses. Press Win+R in combination to open the Run dialog box.

Website WhatIsThatFile.com offers a simple, handy little interface that lets you type in an unknown filename or filetype and gives you as-you-type res ...