84,488,480 programs installed

Should I remove Active Protection System?

What percent of users and experts removed it?
3% remove it97% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #9,386
United States Rank #6,370
Reach 0.0397%


VersionDistribution 0.13% 0.26% 1.40%
1.70.11 71.65%
1.70.10 4.98%
1.70.09 4.09%
1.70.08 13.03%
1.70.07 1.92%
1.70.06 1.92%
1.60.09 0.51%
1.50.03 0.13%

Other programs by Lenovo

Active Protection System

What is Active Protection System?

The APS is a protection system for the ThinkPad's internal harddrive. A sensor inside the ThinkPad recognizes when the notebook is accelerated. A software applet then is triggered to park the harddisk. This way the risk of data loss in case of when the notebook is dropped is significantly reduced since the read/write head of the harddrive is parked and hence can't crash onto the platter when the notebook drops onto the floor. The hardware sensor is capable of not only recognizing acceleration of the notebook, but also (to a certain degree) of its whole orientation in space, relative to gravity's axis.


It is bundled and preinstalled with various Lenovo computers. The most used version is 1.70.11, with over 98% of all installations currently using this version. The main program executable is TpShLP.dll. The software installer includes 6 files and is usually about 4.21 MB (4,410,219 bytes).

Active Protection System 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.

Program detailsProgram details

URL: support.lenovo.com/?lndocid=migr-53167
Installation folder: C:\Program Files\Lenovo\Active Protection System
Uninstaller: C:\Program Files\InstallShield Installation Information\{F493761C-E465-4B9E-9FC1-A312F161DE0A}\setup.exe -runfromtemp -l0x0009 -removeonly
Estimated size: 4.21 MB
Language: English

Program filesFiles installed by Active Protection System

Program module:TpShLP.dll
Name:Active Protection System
Message Support DLL
Path:C:\Program Files\Lenovo\Active Protection System\TpShLP.dll
Additional files:
  • TpShLP.dll - Active Protection System (Message Support DLL)
  • TpShCPLR.dll
  • TpShocks.dll

How do I remove Active Protection System?

You can uninstall Active Protection System 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 Active Protection System, 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 Active Protection System.

Win 7 (SP1) 83%
Win 7 0%
Uninstall it 3%
Keep it 97%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 88.39%
Windows 10 10.33%
Windows XP 0.77%
Windows Vista 0.51%
Which OS releases does it run on?
Windows 7 Home Premium 69.95%
Windows 7 Starter 6.39%
Windows 7 Ultimate 5.88%
Windows 10 Home 5.88%
Windows 7 Professional 4.48%
Windows 10 Pro 2.43%

Distribution by countryGeography

68.09% of installs come from the United States
Which countries install it?
  United States 68.09%
  Germany 5.44%
  Canada 4.62%
  United Kingdom 1.81%
  Czech Republic 1.63%
  Israel 1.27%
  India 1.00%
  Singapore 0.82%
  Malaysia 0.82%
  France 0.73%
  Japan 0.63%
  Philippines 0.63%
  China 0.54%
  Thailand 0.45%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Lenovo 97.94%
Hewlett-Packard 0.64%
Dell 0.51%
Acer 0.51%
Samsung 0.13%
ASUS 0.13%
Gateway 0.13%
Common models
LENOVO 1066AWU 19.76%
LENOVO 1066AJU 15.70%
LENOVO 1066A9U 11.10%
LENOVO HuronRiver Platfor... 6.50%
LENOVO S10-3 5.01%

About Lenovo

Lenovo is a PC hardware and electronics company whose products include personal computers, tablet computers, mobile phones, workstations, servers, electronic storage devices and IT management software.
Publisher URL: www.lenovo.com


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