84,488,480 programs installed

Should I remove AccelerometerP11?

What percent of users and experts removed it?
2% remove it98% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #1,662
United States Rank #1,399
Reach 0.4083%
Lifespan of installation (until removal)
< 15.03 days
443.49 days >
Average installed length: 233.02 days


VersionDistribution 38.04% 4.19% 5.95% 0.81% 11.16% 14.34% 0.01% 0.81% 0.20% 2.16% 3.82% 6.54% 2.27% 0.43% 1.23% 0.46% 0.58% 7.00%


What is AccelerometerP11?

This is the ST Microelectronics free fall sensor application for various laptops technology that attempts to avoid or reduce mechanical damage to hard disk drives by preparing the disk(s) prior to impact. The system consists of accelerometers that alert the system when excess acceleration or vibration is detected. The software then tells the hard disk to unload its heads to prevent them from coming in contact with the platter, thus potentially preventing head crash. This technology only engages if the hard drive is running at the moment of impact.


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. The main program executable is FF_Protection.exe. The software installer includes 42 files and is usually about 2.61 MB (2,738,085 bytes).

Program detailsProgram details

URL: www.STMicroelectronics.com
Installation folder: C:\Program Files\STMicroelectronics\AccelerometerP11
Uninstaller: "C:\Program Files\InstallShield Installation Information\{87434D51-51DB-4109-B68F-A829ECDCF380}\setup.exe" -runfromtemp -l0x0407 -removeonly
Estimated size: 2.61 MB
Language: German (Germany)

Program filesFiles installed by AccelerometerP11

Program executable:FF_Protection.exe
Name:FF_Protection Application
FF_Protection MFC Application
Path:C:\Program Files\STMicroelectronics\AccelerometerP11\FF_Protection.exe
Additional files:
  • FF_Protection.exe - FF_Protection Application (FF_Protection MFC Application)
  • STMarker.exe

Program behaviorsBehaviors exhibited

Scheduled Task (Boot/Login)
  • FF_Protection.exe is automatically launched at startup through a scheduled task named 5.
Startup File (All Users Run)
  • FF_Protection.exe is loaded in the all users (HKLM) registry as a startup file name 'FreeFallProtection' which loads as C:\Program Files\STMicroelectronics\AccelerometerP11\FF_Protection.exe.

Program resource utilizationResource utilization averages

Memory:2.2 MB
21.09 MB average
Total CPU:0.0006697175%
0.031193% average
Kernel CPU:0.00024112%
0.016088% average
User CPU:0.00042860%
0.015104% average

How do I remove AccelerometerP11?

You can uninstall AccelerometerP11 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 AccelerometerP11, 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 AccelerometerP11.

Win 7 (SP1) 88%
Win Server 2003 0%
Automatically starts? 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 91.13%
Windows 10 7.38%
Windows XP 1.42%
Windows Vista 0.06%
Windows Server 2003 0.01%
Which OS releases does it run on?
Windows 7 Professional 40.05%
Windows 7 Home Premium 38.07%
Windows 7 Ultimate 8.56%
Windows 7 Enterprise 3.60%
Windows 10 Pro 1.76%
Windows 8.1 Pro 1.61%

Distribution by countryGeography

55.88% of installs come from the United States
Which countries install it?
  United States 55.88%
  United Kingdom 5.13%
  Germany 4.78%
  France 3.78%
  Canada 3.55%
  Brazil 2.03%
  Australia 2.01%
  India 1.71%
  Netherlands 1.61%
  Italy 1.25%
  Belgium 1.02%
  Israel 1.01%
  Poland 0.99%
  Mexico 0.93%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 94.03%
Alienware 5.11%
Hewlett-Packard 0.33%
Acer 0.28%
ASUS 0.16%
Lenovo 0.08%
Intel 0.03%
Common models
Dell Dell System XPS L5... 14.48%
Dell Dell System XPS L7... 10.68%
Dell Latitude E6420 6.40%
Dell Latitude E6410 5.13%
Dell Latitude E6520 4.49%
Dell Dell System XPS 15... 4.09%

Publisher URL: www.st.com


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