What is the "TrustedInstaller.exe" process on windows 7? Is the "TrustedInstaller.exe" process a virus? Can I terminate the "TrustedInstaller.exe" process?

"TrustedInstaller.exe" process represents "Windows Modules Installer" program. "TrustedInstaller.exe" process is created by the service: "Windows Modules Installer".

"TrustedInstaller.exe" process is normally running under the parent process "services" as shown in the process tree below:

Boot
   wininit
      services
         TrustedInstaller

On the Processes tab of "Task Manager", "TrustedInstaller.exe" process may be listed as:

Image Name                 Memory   Description
--------------------   ----------   -----------
TrustedInstaller.exe      7,396 K   Windows Modules Installer

Additional information about "TrustedInstaller.exe" process:

Command line:
   C:\windows\servicing\TrustedInstaller.exe

Programe file information:
   Name: TrustedInstaller.exe
   Location: C:\windows\servicing\TrustedInstaller.exe
   Description: Windows Modules Installer
   Version: 6.1.7600.16385 (win7_rtm.090713-1255)
   Size: 194048 bytes
   Last modified: 11/20/2010 10:24:03 PM
   Company Name: Microsoft Corporation
   
Some data files used:
C:\Windows\System32
C:\Windows\servicing\en-US\TrustedInstaller.exe.mui
C:\Windows\Logs\CBS\CBS.log
C:\Windows\winsxs
C:\Windows\winsxs\Manifests
C:\Windows\winsxs\Catalogs
C:\Windows\winsxs\ManifestCache\548c1bd2e27235ea_blobs.bin

Some registry keys used:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options
HKLM\SYSTEM\ControlSet001\Control\Nls\Sorting\Versions
HKLM\SYSTEM\ControlSet001\Control\SESSION MANAGER
HKLM\SYSTEM\ControlSet001\Control\NetworkProvider\HwOrder
HKU\.DEFAULT\Control Panel\International
HKLM\COMPONENTS\DerivedData\VersionedIndex\6.1.7601.23505 (win7sp1_ldr.160722-0600)\ComponentFamilies
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\SideBySide
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\SideBySide\Winners
HKLM\COMPONENTS\Configuration
HKLM\COMPONENTS\CanonicalData

Some DLL libraries used:
C:\windows\SYSTEM32\ntdll.dll
C:\windows\system32\kernel32.dll
C:\windows\system32\KERNELBASE.dll
C:\windows\system32\ADVAPI32.dll
C:\windows\system32\msvcrt.dll
C:\windows\SYSTEM32\sechost.dll
C:\windows\system32\RPCRT4.dll
C:\windows\system32\ole32.dll
C:\windows\system32\GDI32.dll
C:\windows\system32\USER32.dll

"TrustedInstaller.exe" process is not a virus. You should not terminate "TrustedInstaller.exe" process.

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