84,488,480 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 #29,855
United States Rank #38,154
Reach 0.0050%


2.4.30 1.04%
2.4.27 1.04%
2.4.22 1.04%
2.4.21 2.08%
2.4.19 4.17%
2.4.18 18.75%
2.4.17 2.08%
2.4.15 5.21%
2.4.14 3.13%
2.4.13 3.13%
2.4.11 20.83%
2.4.9 8.33%
2.4.8 23.96%
2.4.7 1.04%
2.4.5 2.08%
2.4.4 2.08%


Remove Challenger
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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 4 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 10 and Windows 7 (SP1). While about 49% of users of Challenger come from Germany, it is also popular in the United States and Netherlands.

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:
  • Challenger.exe - Challenger (Challenger-Starter)
  • init.exe - 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 Reason's ‘Should I Remove It?’ (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 10 55%
Win XP 1%
Uninstall it 3%
Keep it 97%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 10 55.21%
Windows 7 40.63%
Windows Vista 3.13%
Windows XP 1.04%
Which OS releases does it run on?
Windows 7 Home Premium 22.11%
Windows 10 Home 18.95%
Windows 10 Pro 13.68%
Windows 8.1 11.58%
Windows 7 Ultimate 9.47%
Windows 8.1 Pro 7.37%

Distribution by countryGeography

48.57% of installs come from Germany
Which countries install it?
  Germany 48.57%
  United States 25.71%
  Netherlands 3.81%
  Austria 2.86%
  Canada 2.86%
  Spain 2.86%
  Switzerland 1.90%
  United Kingdom 1.90%
  Italy 1.90%
  Russia 1.90%
  Poland 0.95%
  SD 0.95%
  Argentina 0.95%
  Brazil 0.95%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Acer 25.49%
Hewlett-Packard 21.57%
ASUS 11.76%
Dell 7.84%
Medion 7.84%
Samsung 5.88%
Toshiba 3.92%
Sahara 1.96%
MSI 1.96%
Lenovo 1.96%
Common models
ASUS All Series 3.95%
Gigabyte Z68AP-D3 2.63%
Dell OptiPlex 980 2.63%
Hewlett-Packard 500-223w 2.63%
Hewlett-Packard h8-1110ch 2.63%


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