84,488,480 programs installed

Should I remove Penpower Jr.?

What percent of users and experts removed it?
2% remove it98% keep it
Overall Sentiment
Very good
What do people think about it?
Be the first to rate (click star to rate)
How common is it?
Global Rank #40,562
United States Rank #43,253
Reach 0.0024%


7.2h 46.81%
7.2 53.19%

Penpower Jr.


Penpower Jr. is a program developed by Penpower Co ltd. The most used version is 7.2, with over 98% of all installations currently using this version. Upon installation, it defines an auto-start registry entry which allows the program run on each boot for the user which installed it. The main program executable is custom.exe. The software installer includes 49 files and is usually about 159.32 MB (167,058,909 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 36% of users of Penpower Jr. come from the United States, it is also popular in Hong Kong and Canada.

Program detailsProgram details

Installation folder: C:\Program Files\WINPENJR
Uninstaller: "C:\Program Files\InstallShield Installation Information\{F7D53B02-2C51-4CF5-9A51-F7A6D658EA5A}\setup.exe" -runfromtemp -l0x0009 -removeonly
Estimated size: 159.32 MB
Language: English

Program filesFiles installed by Penpower Jr.

Program executable:custom.exe
Name:PenPower Input Tool
Signed by:Penpower Technology Ltd.
Path:C:\Program Files\winpenjr\win32\custom.exe
Additional files:
  • RelatedWord.dll - RelatedWord Dynamic Link Library (RelatedWord DLL)
  • PPSendWord.dll - PPSendWord Dynamic Link Library (PPSendWord DLL)
  • cpenweditor.dll - PenPower ITCpenW cpenweditor (cpenweditor)
  • PPSIGN.DLL - ppsign Dynamic Link Library (ppsign DLL (Support Vista))
  • PPIT.exe - Penpower Input Tool (PPInputTool)
  • ppinput.dll - PenPower PPInput (PPInput)
  • LEARN.exe - PenPower LEARN (LEARN)
  • ppset.dll - Penpower PPSet (PPSet)
  • PPupdwz.exe - Penpower Updwz
  • MSNChk.exe - WINPENJR (MSNChk)
  • PP_FAQ.exe - PP_FAQ

Program behaviorsBehaviors exhibited

Startup File (User Run)
  • Custom.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'Custom.exe' and executes as "C:\PROGRAM FILES (X86)\WINPENJR\WIN32\CUSTOM.EXE".

How do I remove Penpower Jr.?

You can uninstall Penpower Jr. 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 Penpower Jr., 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 Penpower Jr..

Win 7 (SP1) 60%
Win Vista (SP2) 2%
Auto-starting? Yes
(Found in the run registry)
Uninstall it 2%
Keep it 98%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 63.83%
Windows 10 27.66%
Windows XP 6.38%
Windows Vista 2.13%
Which OS releases does it run on?
Windows 7 Home Premium 40.43%
Windows 7 Ultimate 17.02%
Windows 10 Home 8.51%
Windows 7 Professional 6.38%
Windows 8.1 6.38%
Microsoft Windows XP 6.38%

Distribution by countryGeography

36.36% of installs come from the United States
Which countries install it?
  United States 36.36%
  Hong Kong 27.27%
  Canada 12.73%
  United Kingdom 5.45%
  Singapore 3.64%
  Australia 3.64%
  Germany 3.64%
  Taiwan 1.82%
  Indonesia 1.82%
  China 1.82%
  Malaysia 1.82%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Lenovo 23.08%
Dell 20.51%
ASUS 15.38%
Acer 10.26%
Sony 7.69%
Hewlett-Packard 7.69%
Toshiba 7.69%
American Megatrends 5.13%
MSI 2.56%
Common models
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TOSHIBA Satellite A80 2.44%


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