Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.17031 (winblue_gdr.140221-1952) 14.29%
6.3.9600.16384 (winblue_rtm.130821-1623) 8.57%
6.3.9431.0 (winmain_bluemp.130615-1214) 2.86%
6.2.9200.16613 (win8_gdr.130515-1513) 17.14%
6.2.9200.16455 (win8_gdr.121109-1506) 42.86%
6.2.9200.16455 (win8_gdr.121109-1506) 2.86%
6.2.9200.16384 (win8_rtm.120725-1247) 8.57%
6.2.8400.0 (winmain_win8rc.120518-1423) 2.86%

Relationships

Parent process
Related files

PE structurePE file structure

Show functions
Import table
advapi32.dll
RegOpenKeyExW, RegCloseKey, RegQueryValueExW, ConvertStringSidToSidW, CheckTokenMembership
kernel32.dll
Sleep, CreateDirectoryW, GetFileAttributesExW, LocalFree, TryEnterCriticalSection, LeaveCriticalSection, EnterCriticalSection, InitializeCriticalSection, GetModuleFileNameW, MoveFileExW, GetSystemTime, GetEnvironmentVariableW, GetWindowsDirectoryW, FindClose, DeleteFileW, FindNextFileW, CompareFileTime, FindFirstFileW, OutputDebugStringA, TerminateProcess, UnhandledExceptionFilter, GetTickCount, GetSystemTimeAsFileTime, GetCurrentThreadId, WaitForSingleObject, ResetEvent, GetCurrentProcess, DuplicateHandle, OpenProcess, DeleteCriticalSection, InterlockedIncrement, InterlockedDecrement, GetSystemDirectoryW, FreeLibrary, GetProcAddress, LoadLibraryW, HeapSetInformation, CreateEventW, CloseHandle, SetEvent, GetLastError, WaitForMultipleObjects, GetCurrentProcessId, InterlockedExchange, InterlockedCompareExchange, SetUnhandledExceptionFilter, GetModuleHandleA, QueryPerformanceCounter
msvcrt.dll
DllMain
ole32.dll
CoSuspendClassObjects, CoUninitialize, CoInitializeSecurity, CoInitializeEx, CoCreateInstance, CoDisconnectContext, CoRevokeClassObject, CoResumeClassObjects, CoRegisterClassObject, CoGetMalloc

TiWorker.exe

Windows Modules Installer Worker by Microsoft

Remove TiWorker.exe
Version:   6.3.9600.17031 (winblue_gdr.140221-1952)
MD5:   74eecfbac0e327f54dcf41382912cf9f
SHA1:   c1020a14847cce5a404e226561cb503f5eec48db

Overview

tiworker.exe executes as a process under the SYSTEM account with extensive privileges (the system and the administrator accounts have the same file privileges) typically within the context of its parent svchost.exe (Host Process for Windows Services by Microsoft Corporation). The assembly utilizes the .NET run-time framework (which is required to be installed on the PC). and is compiled as a 64 bit program.

DetailsDetails

File name:tiworker.exe
Publisher:Microsoft Corporation
Product name:Windows Modules Installer Worker
Description:Microsoft® Windows® Operating System
Typical file path:C:\windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_6.2.9200.16384_none_622908ad510eb05b\tiworker.exe
File version:6.3.9600.17031 (winblue_gdr.140221-1952)
Product version:6.3.9600.17031
Size:186.5 KB (190,976 bytes)
Build date:2/22/2014 4:40 AM
Digital DNA
File packed:No
Code language:Microsoft Visual C# / Basic .NET
.NET CLR:Yes
.NET NGENed:No
More details

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.02540807%
0.028634%
Kernel CPU:0.00789002%
0.013761%
User CPU:0.01751805%
0.014873%
Kernel CPU time:145,306 ms/min
100,923,805ms/min
CPU cycles:12,910,533/sec
17,470,203/sec
Context switches:1,513/sec
284/sec
Memory
Private memory:62.92 MB
21.59 MB
Private (maximum):159.11 MB
Private (minimum):23.77 MB
Non-paged memory:62.92 MB
21.59 MB
Virtual memory:190.23 MB
140.96 MB
Virtual memory (peak):341.03 MB
169.69 MB
Working set:56.26 MB
18.61 MB
Working set (peak):256.39 MB
37.95 MB
Page faults:9,417,986/min
2,039/min
I/O
I/O read transfer:4.5 MB/sec
1.02 MB/min
I/O read operations:30/sec
343/min
I/O write transfer:521.01 KB/sec
274.99 KB/min
I/O write operations:224/sec
227/min
I/O other transfer:2.37 KB/sec
448.09 KB/min
I/O other operations:226/sec
1,671/min
Resource allocations
Threads:4
12
Handles:2025
600

BehaviorsProcess properties

Integrety level:System
Platform:64-bit
Command lines:
  • C:\windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_6.3.9600.17031_none_fa50b3979b1bcb4a\tiworker.exe -embedding
  • C:\windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_6.3.9600.17129_none_fa6387b99b0c7738\tiworker.exe -embedding
Owner:SYSTEM
Parent process:svchost.exe (Host Process for Windows Services by Microsoft Corporation)

ResourcesThreads

Averages
 
ntdll.dll
Total CPU:21.33293970%
0.272967%
Kernel CPU:8.20972872%
0.107585%
User CPU:13.12321099%
0.165382%
CPU cycles:382,735,197/sec
5,741,424/sec
Context switches:448/sec
79/sec
Memory:1.66 MB
1.16 MB
cbscore.dll
Total CPU:20.57709486%
Kernel CPU:0.81799206%
User CPU:19.75910280%
CPU cycles:188,292,418/sec
Context switches:248/sec
Memory:1.51 MB
TiWorker.exe (main module)
Total CPU:0.00632571%
Kernel CPU:0.00631640%
User CPU:0.00000931%
CPU cycles:68,420/sec
Memory:204 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 8 37.14%
Windows 8 Pro 20.00%
Windows 8.1 14.29%
Windows 8 Pro with Media Center 8.57%
Windows 8.1 Pro with Media Center 2.86%
Windows 8.1 Enterprise 2.86%
Windows 8.1 Pro 2.86%
Windows 8.1 Pro Preview 2.86%
Windows 8 Single Language 2.86%
Windows 8 Enterprise 2.86%
Windows 8 Release Preview 2.86%

Distribution by countryDistribution by country

United States installs about 54.29% of Windows Modules Installer Worker.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
ASUS 25.81%
Toshiba 19.35%
Sony 12.90%
Dell 12.90%
Acer 9.68%
Hewlett-Packard 9.68%
Intel 6.45%
Samsung 3.23%
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