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What is trustedinstaller.exe?

Part of Windows Modules Installer by Microsoft

What is it?

The Windows Modules Installer (trusted Installer) enables installation, modification, and removal of Windows updates and optional components.

What if I disable Windows Modules Installer?

If this service is disabled, install or uninstall of Windows updates might fail for this PC.
(trustedinstaller.exe is a system file that is installed with Windows)
Download Boost (100% FREE) Speed up Windows Modules Installer and optimize your PC.

How does trustedinstaller.exe run?

Service - trustedinstaller.exe runs as a background Windows service called 'TrustedInstaller' (Instalační služba modulů systému Windows). This is a system service that is installed with the Windows operating system and protected with Window's File Protection. This service runs as the SYSTEM account with extensive privileges on the local computer, and acts as the computer on the network. Instalační služba modulů systému Windows runs as a program that can be started by the Service Controller and that obeys the service control protocol. This type of service runs in a process by itself.


What is the community is seeing?What is the community is doing?
About 0.5% of all Boost users have the trustedinstaller.exe process running.Of the 0.5% of trustedinstaller.exe users, less than 1% have disabled it.
How resource intensive is trustedinstaller.exe?
Comparison based on the average resource utilization across all programs.
0.00012% CPU1186.1%
Average CPU utilization across all programs is 0.00001%.
     1.54 MB RAM7.2%
Average private memory utilization across all programs is 21.53 MB.
 2 /min0.1%
Average I/O read and write operations for all programs is 2,253 per minute.
Typical file (disk image) location:

Are there other versions of Windows Modules Installer?

What else is related?

What Windows OS versions does this run on?

Windows 8.1 (6.2.9200.0)
Windows 8.1 Pro with Media Center (6.2.9200.0)
Windows 8.1 Single Language (6.2.9200.0)

About Microsoft Corporation

Microsoft, founded in 1975 by Bill Gates and Paul Allen, is a veteran software company, best known for its Microsoft Windows operating system and the Microsoft More...
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File details

File name: trustedinstaller.exe
Publisher: Microsoft Corporation (verified)
Name: Windows Modules Installer
Description: Microsoft® Windows® Operating System
Version: 6.3.9600.16384 (winblue_rtm.130821-1623)
Product version: 6.3.9600.16384
Size: 97.5 KB
Original file name: TrustedInstaller.exe.mui
Windows file protection: Yes

Resource utilization

CPU utilization averages
Total CPU: 0.0002023039%
Privileged CPU: 0.0000836965%
User CPU: 0.00011860740200%
Privileged CPU time: 187.5 ms
Privileged CPU time /min: 0 ms
CPU cycle count: 500,310,654
CPU cycle count /min: 546,170
Memory utilization averages
Committed memory: 30.8 MB
Peak committed memory: 36.96 MB
Paged memory: 1.54 MB
Peak paged memory: 4.47 MB
Paged system memory: 60.52 KB
Non-paged system memory: 7.48 KB
Working set memory: 4.7 MB
Peak working set memory: 9.64 MB
Min working set memory: 4.05 MB
Private memory: 1.54 MB
Page faults: 6,290
Page faults /min: 7
Process I/O averages
Total read operations: 1
Read operations /min: 1
Total read transfer: 16.81 KB
Read transfer /min: 19 Bytes
Total write operations: 35
Write operations /min: 1
Total write transfer: 5.1 KB
Write transfer /min: 6 Bytes
Total other operations: 153
Other operations /min: 1
Total other transfer: 698 Bytes
Other Transfer /min: 0 Bytes
Handle count average: 95
Thread count average: 2
Thread resource averages

Process details

Runs as (owner): System
Integrety level: System
Windows platform: 64-bit
Runs as a service: Yes
Process Command

Service details

Name: Instalační služba modulů systému Windows
Service name: TrustedInstaller
Service type: Win32OwnProcess
Description: “Umožňuje instalovat, upravovat a odebírat aktualizace a volitelné součásti systému Windows. Je-li tato služba zakázána, pravděpodobně nebude možné do počítače instalovat ani odebírat aktualizace systému Windows.”

Image hashes

MD5: 887cc44830d3f367cad17a0ca7cca5c8
SHA-1: da6572599dca98e689c96f3e05d3a93176a48c73

PE image details

Subsystem: Windows GUI
Langauge*: Microsoft Visual C++
File entropy: 6.35318
File packed: No
Import Table
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