What is ex64?
The genuine ex64.sys file is a software component of Symantec Endpoint Protection by Symantec.
Symantec Endpoint Protection is a suite of security software designed to protect servers and desktops from malicious software and online threats. Ex64.sys is a system driver that is part of the anti-virus engine. This is not an essential Windows process and can be disabled if known to create problems.
Symantec Endpoint Protection provides firewall, anti-malware, and intrusion prevention features. The program may be scheduled to scan computers for security threats, corporate networks for harmful traffic, and can detect unauthorized software which may be running on networked systems. Symantec Endpoint Protection currently boasts of the largest market-share of any product for endpoint security.
Symantec is an American company that develops and distributes security, storage and systems management solutions and offers services that support its software. It was established in 1982 by Dr. Gary Hendrix, a specialist in the processing of natural languages and artificial intelligence. Symantec was initially funded by a monetary grant by the National Science Foundation and later through venture capital firms. It is currently a Fortune 500 company. Symantec is headquartered in Sunnyvale, California.
Ex64 stands for Anti-virus Engine Extension (64-bit)
Ex64.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc.
The free file information forum can help you determine if ex64.sys is a Windows system file or if it belongs to an application that you can trust.
Run a free scan to check for ex64 drivers in need of updating
Ex64.sys file information
The process known as AV Engine or NAVEX15 belongs to software Symantec Antivirus Engine or Norton Security by Symantec (www.symantec.com).
Description: Ex64.sys is not essential for the Windows OS and causes relatively few problems. The file ex64.sys is located in a folder listed in the Windows %PATH% environment variable (common is C:\).
Known file sizes on Windows 10/11/7 are 2,137,304 bytes (33% of all occurrences), 2,148,080 bytes and 4 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs.
The program has no visible window. It is not a Windows system file. The service has no detailed description. The file is a Verisign signed file. The ex64.sys file is digitally signed.
ex64.sys appears to be a compressed file.
Therefore the technical security rating is 10% dangerous.
Uninstalling this variant:
If there are any problems with ex64.sys, you can consult
Symantec's
Customer Service or uninstall
Norton 360 or
Norton Security from your computer using the Control Panel applet
Uninstall a Program.
Recommended: Identify ex64.sys related errors
Important: Some malware camouflages itself as ex64.sys. Therefore, you should check the ex64.sys 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.
Best practices for resolving ex64 issues
A clean and tidy computer is the key requirement for avoiding problems with ex64. 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 executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.
To help you analyze the ex64.sys 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. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.
Other processes
ext_piccshare.dll fspuip.exe accsvc.exe ex64.sys live.exe browserpluginhelper.exe amsprotectedservice.exe srtasks.exe savservice.exe torrentexpress.exe ccenhancer.exe [all]
Score
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