82,399,351 programs installed

Should I remove Challenger?

What percent of users and experts removed it?
3% remove it97% keep it
Overall Sentiment
What do people think about it?
Be the first to rate (click star to rate)
How common is it?
Global Rank #32,372
United States Rank #45,731
Reach 0.0044%


2.4.18 4.84%
2.4.15 6.45%
2.4.14 3.23%
2.4.13 4.84%
2.4.11 27.42%
2.4.9 11.29%
2.4.8 33.87%
2.4.7 1.61%
2.4.5 3.23%
2.4.4 3.23%



Challenger is a software program developed by HB.Fomm. The most common release is 2.4.8, with over 98% of all installations currently using this version. 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 primary executable is named cha.exe. The setup package generally installs about 3 files and is usually about 1.04 MB (1,095,122 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows 8. While about 51% of users of Challenger come from Germany, it is also popular in the United States and Austria.

Program detailsProgram details

URL: www.encryption-software.de
Installation folder: C:\Program Files\challenger
Uninstaller: C:\Program Files\Challenger\uninstall.exe
Estimated size: 1.04 MB

Program filesFiles installed by Challenger

Program executable:cha.exe
Challenger-Encryption (Freeware)
Path:C:\Program Files\challenger\cha.exe
Additional files:
  • init.exe - Challenger (Challenger-Init)
  • uninstall.exe - Challenger-Uninstaller

Program behaviorsBehaviors exhibited

Scheduled Task
  • cha.exe is scheduled as a task with the class '{01814E38-425B-434F-89E9-20A8124E50DA}' (runs on registration).

How do I remove Challenger?

Quickly and completely remove Challenger from your computer by downloading "Should I Remove It?", its 100% FREE and installs in seconds (click the button below).
Or, you can uninstall Challenger 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: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program Challenger, click it, and then do one of the following:
    • Windows Vista/7/8: 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 Challenger.

Win 7 (SP1) 52%
Win Vista (SP2) 2%
Uninstall it 3%
Keep it 97%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 56.45%
Windows 8 40.32%
Windows Vista 3.23%
Which OS releases does it run on?
Windows 7 Home Premium 29.51%
Windows 8.1 16.39%
Windows 7 Ultimate 13.11%
Windows 7 Professional 11.48%
Windows 8.1 Pro 9.84%
Windows 10 Home 6.56%

Distribution by countryGeography

50.68% of installs come from Germany
Which countries install it?
  Germany 50.68%
  United States 27.40%
  Austria 2.74%
  Canada 2.74%
  Russia 2.74%
  Netherlands 1.37%
  Spain 1.37%
  Brazil 1.37%
  Argentina 1.37%
  Italy 1.37%
  United Kingdom 1.37%
  DK 1.37%
  SD 1.37%
  Switzerland 1.37%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Acer 21.95%
Hewlett-Packard 19.51%
ASUS 17.07%
Dell 9.76%
Samsung 4.88%
Medion 4.88%
Toshiba 4.88%
Sahara 2.44%
MSI 2.44%
Lenovo 2.44%
Common models
ASUS All Series 4.08%
Samsung R505 2.04%
Medion Akoya E6240T 2.04%
Hewlett-Packard p6-2491eo 2.04%
HP Pavilion 15 Notebook P... 2.04%
MSI MS-7788 2.04%


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