What is 4Sync.exe?

The genuine 4Sync.exe file is a software component of 4Sync by 4Sync.
4Sync.exe is an executable file that belongs to 4Sync, a program that syncs data between multiple devices. This is not a critical Windows component and should be removed if known to cause problems. 4Sync is a data synchronization program that makes sure multiple devices share the same data. The program works by sending all data from all devices from a specified folder in the respective device to the 4Sync servers and downloads that data to all devices that are sharing it. Devices may includes computers, tablets, phones and cameras. The program supports the Windows, Mac, iPhone, iPad, Android, BlackBerry and Symbian platforms. 4Sync was initially released in 2011 after the company was spun off from the 4Shared data storage venture. 4Sync is based in San Francisco in the United States.

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 4Sync.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.

Click to Run a Free Scan for 4Sync.exe related errors

4Sync.exe file information

Windows Task Manager with 4Sync
4Sync.exe process in Windows Task Manager

The process known as 4Sync belongs to software 4Sync by New IT Solutions (

Description: 4Sync.exe is not essential for the Windows OS and causes relatively few problems. 4Sync.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 7,713,272 bytes (40% of all occurrences), 10,839,072 bytes, 10,821,664 bytes or 13,179,660 bytes. 
The software has no file description. 4Sync.exe is certified by a trustworthy company. The process is loaded during the Windows boot process (see Registry key: Run). 4Sync.exe is not a Windows core file. The program is not visible. 4Sync.exe is able to connect to the Internet, record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 47% dangerous.

Uninstalling this variant: If problems with 4Sync occur, you can also completely remove it (Control Panel ⇒ Uninstall a Program).

Recommended: Identify 4Sync.exe related errors

Important: Some malware camouflages itself as 4Sync.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the 4Sync.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.


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Best practices for resolving 4Sync issues

A clean and tidy computer is the key requirement for avoiding problems with 4Sync. 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 4Sync.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

4Sync.exe [all]