psxss.exe is a program which is probably NOT a virus or malware. So, if psxss.exe is on your computer, 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 good antivirus with a good track record, in order to yourself your system against threats.
The default filename and folder where the program is stored is
C:\Windows\System32\psxss.exe.
The MD5 checksum for this executable is 53398f2dc911590c5c224605e9f470bb.
This program is NOT registered as a Windows service. This is very good.
psxss.exe appears to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This executable runs as a 32-bit program. It does not exploit the entire set of features of nowadays' PC chips. This is quite normal because the publishers did not bother to upgrade it to 64-bit code.
The description extracted from the file is SUA Subsystem Server.
File version stored as a property 6.1.7601.17514 (win7sp1_rtm.101119-1850).
Author Microsoft Corporation.
Copyright notice © Microsoft Corporation. All rights reserved..
Some dangerous features of the Operating System appear to be used, such as functions for tapping the keyboard. We advise you to be very careful regarding this program.
psxss.exe is digitally signed. Nowadays the large majority of virus-free software applications are digitally signed.
The digital signature found in psxss.exe checks out perfectly. This is excellent.
Digitally signed by: Microsoft Windows
Certificate's issuer name: Microsoft Windows Verification PCA
This application does NOT have an uninstall command set up in registry.