What is PCCompanion.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 PCCompanion.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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PCCompanion.exe file information

Windows Task Manager with PCCompanion
PCCompanion.exe process in Windows Task Manager

The process known as Sony PC Companion or Sony Ericsson PC Companion belongs to software Sony PC Companion or Sony Ericsson PC Companion or Sony Mobile Communications by Sony ( or Sony Ericsson (

Description: PCCompanion.exe is not essential for Windows and will often cause problems. The PCCompanion.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 457,088 bytes (40% of all occurrences), 468,192 bytes and 12 more variants. 
The PCCompanion.exe file is not a Windows system file. The application starts when Windows starts (see Registry key: Run). The program is not visible. The file has a digital signature. Therefore the technical security rating is 45% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you still experience problems with PCCompanion.exe, you can do the following:
  1) uninstall Sony PC Companion or Sony Ericsson PC Companion software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7)
  2) search the support area on the Sonymobile website.

Recommended: Identify PCCompanion.exe related errors

Important: Some malware camouflages itself as PCCompanion.exe. Therefore, you should check the PCCompanion.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

PCcompanion.exe sorgt regelmässig dafür, dass windows nicht ordnungsgemass herunter fährt... hat meine stromrechnung schon um einige €uros in die höhe getrieben

Summary: Average user rating of PCCompanion.exe: based on 1 vote with 1 user comment. One user suspects danger.

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Best practices for resolving PCCompanion issues

A clean and tidy computer is the key requirement for avoiding problems with PCCompanion. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the PCCompanion.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

PCCompanion.exe [all]