84,488,480 programs installed

Should I remove HP Power Assistant?

What percent of users and experts removed it?
7% remove it93% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #2,037
United States Rank #2,199
Reach 0.3201%
Lifespan of installation (until removal)
< 23.48 days
692.78 days >
Average installed length: 364.00 days


VersionDistribution 37.06% 0.16% 0.10% 13.39% 9.19% 3.33% 0.70% 5.63% 24.05% 2.03% 4.15% 0.22%

Typically installed together

Other programs by Hewlett-Packard

HP Power Assistant

What is HP Power Assistant?

The HP Power Assistant provides an easy method for changing operating system and device configuration settings in order to manage power consumption.

About  (from Hewlett-Packard)

HP Power Assistant puts your notebook’s power settings at your fingertips with one easy- to -use tool. And because it uses dedicated hardware found in HP business notebooks, the HP Power Assistant delivers a level of accuracy and monitoring you simply can’t find in other power management tools. You gain the real-time v...  Read more


HP Power Assistant is a program developed by Hewlett-Packard. It is bundled and preinstalled with various Hewlett-Packard computers. The most used version is, with over 98% of all installations currently using this version. Upon installation and setup, it defines an auto-start registry entry which makes this program run on each Windows boot for all user logins. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The main program executable is HPPA_Main.exe. The software installer includes 19 files and is usually about 15.6 MB (16,355,239 bytes). In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 10. While about 44% of users of HP Power Assistant come from the United States, it is also popular in France and Germany.

This program is pre-installed on the PC

Such software is installed by the manufacture when delivering the PC to the end user. Some pre-installed programs are considered bloatware as they are simply limited function trials, while others are required for proper PC operation.
Note: This program has often been considered as bloatware by some users as it is bundled on various manufacturer's new PCs. (Because this might be considered bloatware does not mean the software is bad or harmful, if you use it regularly its worthwhile to have. However, bloatware typically means the program is optional and was simply pre-installed but is not required and can be removed.) Some quick tips to be aware of:
  • It is usually licensed for use only on the HP PC on which it was pre-installed.
  • It sometimes difficult for users to remove via the 'Uninstall a Program' feature in Windows.

Program detailsProgram details

URL: www.hp.com
Installation folder: C:\Program Files\Hewlett-Packard\HP Power Assistant\
Uninstaller: MsiExec.exe /X{8778C1A2-0EC2-4D63-A075-C8E8097B1C79}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 15.6 MB
Language: English (United States)

Program filesFiles installed by HP Power Assistant

Program executable:HPPA_Main.exe
Name:HP Power Assistant
Path:C:\Program Files\Hewlett-Packard\HP Power Assistant\HPPA_Main.exe
Additional files:
  • HPPA_MeasurementTool.exe - HPPA_MeasurementTool
  • DelayedAppStarter.exe - HP Power Assistant (DelayedAppStarter)
  • HPCommon.dll - HPCommon
  • HPPA_Main.exe
  • HPPA_Tile.exe - HP Power Assistant Mobility Center Tile
  • HPPA_Tile64.exe
  • LocalizeExtension.dll - LocalizeExtension
  • HistDB_Converter.exe - HistDB_Converter
  • HPPA_Remote.dll - HP_Manageability
  • HPPA_TileHelper.exe - HPPA_TileHelper
  • UninstallHelper.exe - UninstallHelper
  • HardwareAccess.dll - HardwareAccess
  • HPPA_Service.exe - HPPA_Service
  • Graphs.dll - Graphs
  • Setup_PDI.exe (by Acresso Software) - InstallShield (Setup.exe)

Program behaviorsBehaviors exhibited

Scheduled Task
  • HPPA_Main.exe is scheduled as a task with the class '{C143B27C-5818-4F32-955B-37D4621B095A}' (runs on registration).
  • HPPA_Service.exe runs as a service named 'HP Power Assistant Service' (HP Power Assistant Service) "This service monitors the power usage of this computer and allows the HP Power Assistant application to turn devices on and off.".
2 Startup Files (All Users Run)
  • HPPA_Main.exe is loaded in the all users (HKLM) registry as a startup file name 'HPPowerAssistant' which loads as C:\PROGRAM FILES\HEWLETT-PACKARD\HP POWER ASSISTANT\HPPA_MAIN.EXE /HIDDEN.
  • DelayedAppStarter.exe is loaded in the all users (HKLM) registry as a startup file name 'HPPowerAssistant' which loads as C:\Program Files\Hewlett-Packard\HP Power Assistant\DelayedAppStarter.exe 120 C:\Program Files\Hewlett-Packard\HP Power Assistant\HPPA_Main.exe /hidden.

Program resource utilizationResource utilization averages

Memory:96.13 MB
21.09 MB average
Total CPU:0.0006109669%
0.031193% average
Kernel CPU:0.00011809%
0.016088% average
User CPU:0.00049287%
0.015104% average
70 average
Memory:63.32 MB
Total CPU:0.0009281093%
Kernel CPU:0.00047620%
User CPU:0.00045191%

How do I remove HP Power Assistant?

You can uninstall HP Power Assistant from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program HP Power Assistant, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove HP Power Assistant.

Win 7 (SP1) 88%
Win 7 0%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 7%
Keep it 93%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 92.57%
Windows 10 7.19%
Windows XP 0.24%
Which OS releases does it run on?
Windows 7 Professional 66.77%
Windows 7 Home Premium 20.06%
Windows 10 Pro 4.67%
Windows 7 Ultimate 3.29%
Windows 7 Enterprise 2.29%
Windows 10 Home 1.02%

Distribution by countryGeography

43.85% of installs come from the United States
Which countries install it?
  United States 43.85%
  France 3.84%
  Germany 3.40%
  Netherlands 3.02%
  United Kingdom 2.39%
  Canada 2.39%
  Czech Republic 2.35%
  Sweden 2.14%
  Italy 2.12%
  Belgium 1.74%
  Norway 1.66%
  South Africa 1.52%
  Austria 1.36%
  Switzerland 1.33%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 99.39%
Acer 0.27%
Dell 0.16%
Lenovo 0.06%
ASUS 0.05%
Intel 0.03%
Common models
HP ProBook 4530s 20.94%
HP ProBook 4540s 9.93%
HP ProBook 4520s 5.95%
HP ProBook 4730s 5.19%
HP ProBook 6560b 4.07%
HP EliteBook 8460p 3.77%

About Hewlett-Packard

HP provides products, software solutions and services to consumers, from enterprises to consumers including customers in the government, health and education sectors.
Publisher URL: www.hp.com

comments2 comments

user comment
user comment
blackjack00over a year ago
It may have a memory leak for some versions. I see Working Memory (in Task Manager) get higher than 400,000Kb (400MB) with 150MB being common. Maybe due to multiple Sleep or Hibernate activities, not sure. You can reset this by restarting the service (Control Panel, Admin Tools, Services), or rebooting obviously. After service restart it runs about 50Mb for me. I think if you run 95% of the time plugged in to power cord you could disable the service.
user comment
Commentatorover a year ago
It ought to be removed. I had this running on one of my laptops and was preventing the use of a USB mouse with no indication that it was blocking usb power. Bloatware generally is less than helpful.