What is system.js?

Please read below to decide for yourself whether the system.js 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.

Click to Run a Free Scan for system.js related errors

System.js file information

There is no information about the producer in the system.js process.

Description: System.js is not essential for the Windows OS and causes relatively few problems. System.js is located in a subfolder of "C:\Program Files". The file size on Windows 10/8/7/XP is 90 bytes. 
The program has a visible window. There is no file information. The application starts upon Windows startup (see Registry key: User Shell Folders, Run). The system.js file is not a Windows core file. system.js appears to be a compressed file. Therefore the technical security rating is 66% dangerous.

Recommended: Identify system.js related errors

If system.js is located in a subfolder of the user's profile folder, the security rating is 66% dangerous. The file size is 149 bytes (50% of all occurrences) or 299 bytes. The program has a visible window. It is a file with no information about its developer. The software is loaded during the Windows boot process (see Registry key: User Shell Folders, Run). The system.js file is not a Windows core file. system.js appears to be a compressed file.

Important: Some malware also uses the file name system.js, for example Trojan.Script.Suspic.gen (detected by Kaspersky), and Unix:Malware-gen (detected by Avast). Therefore, you should check the system.js 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

There are no user opinions yet. Why not be the first to write a short comment?

Do you have additional information? Help other users!
What do you know about system.js:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving system issues

A clean and tidy computer is the key requirement for avoiding problems with system. 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 system.js 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

system.js [all]