presentationfontcache.exe is a application which is probably NOT a virus. So, if presentationfontcache.exe is on your system, it is probably ok, and will NOT be a cause for concern. Even if your PC is virus-free, it is still recommended to purchase a well-known antivirus with a good track record, in order to yourself your PC against threats.
This program is normally found in C:\Windows\Microsoft.NET\Framework\v3.0\WPF\PresentationFontCache.exe.
The MD5 checksum for this file is e56f39f6b7fda0ac77a79b0fd3de1a2f.
This program is registered as a Windows service. This means it runs on your system in background, usually without displaying any user interface to you. Most Windows services are legit programs, which perform useful functions to other applications or to Windows in general.
presentationfontcache.exe appears to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This program runs as a 32-bit program. It does not exploit the entire set of features of current computer chips. This is quite normal because the makers did not bother to upgrade it to 64-bit code.
The description present in the exe is PresentationFontCache.exe.
File version stored as a property 3.0.6920.4902 built by: NetFXw7.
Company Microsoft Corporation.
Intellectual property rights notice © Microsoft Corporation. All rights reserved..
presentationfontcache.exe has a digital signature. Nowadays the large majority of virus-free programs are digitally signed.
The digital signature attached to presentationfontcache.exe verifies as ok. This is excellent.
Digital certificate name: Microsoft Corporation
Certificate's issuer name: Microsoft Code Signing PCA
This application does NOT have a removal routine stored in registry.