What is p4s.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the p4s.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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P4s.exe file information

Windows Task Manager with p4s
P4s.exe process in Windows Task Manager

The process known as Perforce Server belongs to software Perforce Server Components or Perforce Core Components by Perforce Software (

Description: P4s.exe is not essential for the Windows OS and causes relatively few problems. P4s.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,216,512 bytes (25% of all occurrences), 1,105,920 bytes, 1,081,344 bytes or 3,455,104 bytes. 
The application has no file description. The program has no visible window. It is not a Windows core file. The software uses ports to connect to or from a LAN or the Internet. P4s.exe is able to monitor applications. Therefore the technical security rating is 58% dangerous; however you should also read the user reviews.

Uninstalling this variant: The software publisher Perforce provides direct support ( You could uninstall the program using the Control Panel ⇒ Uninstall a ProgramPerforce Server Components or Perforce Core Components.

Recommended: Identify p4s.exe related errors

If p4s.exe is located in a subfolder of C:\, the security rating is 74% dangerous. The file size is 1,130,496 bytes. There is no information about the author of the file. The program is not visible. The application listens for or sends data on open ports to a LAN or the Internet. The p4s.exe file is not a Windows core file.

Important: Some malware camouflages itself as p4s.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the p4s.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

I believe it is the Perforce server installer
Perforce Server (Source Control Management System)
  Alexander Chernyshev   (further information)
This is the Perforce Server
  Ken Scott   (further information)

Summary: Average user rating of p4s.exe: based on 3 votes with 3 user comments. 3 users think p4s.exe is essential for Windows or an installed application.

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Best practices for resolving p4s issues

A clean and tidy computer is the key requirement for avoiding problems with p4s. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the p4s.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

p4s.exe [all]