The genuine esrv.exe file is a software component of Sony® VAIO Care by Sony Corporation.
This driver file works with “esrv_svc.exe” as part of Sony Corporation's “VAIO Care” software for its VAIO laptops. They are related to monitoring power usage and have an effect upon whether automatic screen brightness adjustment works properly, especially after entering and leaving hibernation. (Updating all drivers before upgrading from Win7 to Win8.1 is essential.) If this program does not reside in “C:\Program Files\Sony\VAIO Care”, possibly with a subfolder named “esrv”, or if it is found in “C:\Windows” or its “System32” subpath, it is possibly disguised malware. Uninstalling is possible via the Control Panel, (select “VAIO Care”). There may be similar processes in other OEM’s computers based on Intel’s Energy Checker SDK (System Development Kit) with an “ESRV” tool for taking readings from onboard power analyzers, although this was being called “Whatif” software in 2010 and forum threads were archived.
ESrv stands for Sony® Energy Service
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 esrv.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.
The process known as Intel® System Usage Report or Intel® Energy Checker Energy Server
belongs to software VAIO Care or Intel® Driver Update Utility or Intel® System Usage Report or Intel Energy Checker or Intel® Network Connections or Intel® PROSet/Wireless WiFi Software
by Intel® Software Development Products or Intel® Energy Checker or Intel (www.intel.com).
Description: Esrv.exe is not essential for the Windows OS and causes relatively few problems. Esrv.exe is located in a subfolder of "C:\Program Files".
Known file sizes on Windows 10/8/7/XP are 458,904 bytes (47% of all occurrences), 460,952 bytes and 4 more variants.
The program is not visible. It is not a Windows system file. The file has a digital signature. The program uses ports to connect to or from a LAN or the Internet. The program can be removed using the Control Panel's Add\Remove programs applet. Therefore the technical security rating is 30% dangerous.
Recommended: Identify esrv.exe related errors
Important: Some malware camouflages itself as esrv.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the esrv.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.
A clean and tidy computer is the key requirement for avoiding problems with esrv. 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 esrv.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.