What is pwmewsvc.exe?

The genuine pwmewsvc.exe file is a software component of Cisco EnergyWise Enabler by Lenovo Group.
"PWMEWSVC.exe" is the executable file for controlling, monitoring, and reporting power consumption in a ThinkPad and in IT devices, unlike all other software that reports on predictions. The ThinkPad is the first laptop to include this software. This file provides the ability to balance system performance with power usage through power plans and slider controls. Lenovo began in 1984 with a focus on global computer technology and currently creates tablets, smartphones, computers, IT products, and more. They also handle IT software and operate in over 60 countries worldwide.

PwMEWSvc stands for Power Manager EnergyWise 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 pwmewsvc.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 pwmewsvc.exe related errors

Pwmewsvc.exe file information

Windows Task Manager with pwmewsvc
Pwmewsvc.exe process in Windows Task Manager

The process known as Cisco EnergyWise Enabler or Power Manager Cisco EnergyWise Enabler belongs to software Power Manager or Cisco EnergyWise Enabler or ThinkPad Presentation Director by Lenovo Group (

Description: Pwmewsvc.exe is not essential for the Windows OS and causes relatively few problems. Pwmewsvc.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 143,360 bytes (85% of all occurrences), 148,840 bytes, 1,664,064 bytes, 175,168 bytes or 1,663,272 bytes. 
The program is not visible. Pwmewsvc.exe is not a Windows core file. Pwmewsvc.exe is a file with no information about its developer. Therefore the technical security rating is 60% dangerous.

Uninstalling this variant: If you experience any issues with installation of pwmewsvc.exe, you can also uninstall the associated program (Start > Control Panel > Uninstall a Program > ThinkPad Presentation Director).

Recommended: Identify pwmewsvc.exe related errors

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

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

pwmewsvc.exe [all]