Criptografia

como faço para discriptografar arquivos com extenção

wenon,vataq e vapo

First, I’m an Avast user and not an Avast Team member.
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Not sure why you would want to do this (or if windows would prevent this), given the results in this google search.

Extract of Google search:
A .pf file extension is most commonly a Windows Prefetch File, used by Microsoft Windows to speed up application launching by storing data about frequently used programs. These files are located in C:\Windows\Prefetch and are safe to leave alone, as deleting them may temporarily slow down system performance.

.pf Extension search