What is TPwrMain.exe?

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 TPwrMain.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.

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TPwrMain.exe file information

Windows Task Manager with TPwrMain
TPwrMain.exe process in Windows Task Manager

The process known as TOSHIBA Power Saver belongs to software TOSHIBA Face Recognition or TOSHIBA Value Added Package or TOSHIBA Power Saver by TOSHIBA ( or TOSHIBA CORPORATION (

Description: TPwrMain.exe is not essential for Windows and will often cause problems. TPwrMain.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 431,456 bytes (44% of all occurrences), 411,192 bytes and 7 more variants. 
The program is not visible. It is a Verisign signed file. The file has a digital signature. It is not a Windows system file. The software can be uninstalled in the Control Panel. The software starts upon Windows startup (see Registry key: MACHINE\Run). TPwrMain.exe is able to monitor applications. Therefore the technical security rating is 16% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case you experience problems using TPwrMain.exe, you can also do the following:
  • ask the software vendor,, for advice
  • uninstall the program using the Control Panel ⇒ Uninstall a ProgramTOSHIBA Face Recognition or TOSHIBA Value Added Package

Recommended: Identify TPwrMain.exe related errors

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


User Comments

tpwrmain.exe belongs to TOSHIBA Power Saver (power management software for their laptops).
Gehört zu Toshiba-Power-Saver. Sprich Bei dem qosmio der öko modus!

Rating chart

Summary: Average user rating of TPwrMain.exe: based on 6 votes with 2 user comments. One user thinks TPwrMain.exe is essential for Windows or an installed application. 2 users think it's probably harmless. 3 users think TPwrMain.exe is dangerous and recommend removing it.

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Best practices for resolving TPwrMain issues

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

TPwrMain.exe [all]