The genuine PMHandler.exe file is a software component of PM Driver by Lenovo. Preinstalled on many Lenovo laptops and notebooks this file relates to Lenovo's power management utility. This is a separate power management tool to that provided by Windows.
PMHandler stands for Power Management Handler
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 PMHandler.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.
Description: PMHandler.exe is not essential for the Windows OS and causes relatively few problems. The PMHandler.exe file is located in the C:\Windows\System32 folder or sometimes in a subfolder of C:\Windows\System32.
Known file sizes on Windows 8/7/XP are 24,576 bytes (93% of all occurrences) or 20,480 bytes.
The software starts upon Windows startup (see Registry key: MACHINE\Run). The PMHandler.exe file is not a Windows core file. The program has no visible window. The software can be removed using the Control Panel's Add\Remove programs applet. PMHandler.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 32% dangerous, however you should also read the user reviews.
You could uninstall the associated program (Start > Control Panel > Add/Remove programs > PM Driver).
Recommended: Identify PMHandler.exe related errors
If PMHandler.exe is located in a subfolder of "C:\Program Files", the security rating is 15% dangerous. The file size is 33,128 bytes (62% of all occurrences) or 31,840 bytes. The application can be uninstalled in the Control Panel. The file is a Verisign signed file. It is digitally signed. The process is loaded during the Windows boot process (see Registry key: MACHINE\Run). The file is not a Windows system file. The program is not visible. PMHandler.exe is able to record keyboard and mouse inputs.
Important: Some malware disguises itself as PMHandler.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the PMHandler.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 PMHandler. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off doing a repair of your installation, or in the case of Windows 8, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To help you analyze the PMHandler.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.