Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 4.35%
6.3.9600.16384 (winblue_rtm.130821-1623) 0.10%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.24%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.05%
6.2.9200.16384 (win8_rtm.120725-1247) 2.49%
6.2.9200.16384 (win8_rtm.120725-1247) 13.87%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.10%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.10%
6.2.8250.0 (winmain_win8beta.120217-1520) 0.05%
6.2.8102.0 (winmain_win8m3.110823-1455) 0.10%
6.1.7600.16385 (win7_rtm.090713-1255) 25.05%
6.1.7600.16385 (win7_rtm.090713-1255) 44.53%
6.1.7600.16385 (win7_rtm.090713-1255) 0.05%
6.0.6001.18000 (longhorn_rtm.080118-1840) 7.08%
6.0.6001.18000 (longhorn_rtm.080118-1840) 1.46%
6.0.6000.16386 (vista_rtm.061101-2205) 0.39%


PE structurePE file structure

Show functions
Import table
CheckTokenMembership, SetServiceStatus, ReportEventW, RegisterEventSourceW, DeregisterEventSource, RegisterServiceCtrlHandlerW, StartServiceCtrlDispatcherW, RevertToSelf, CreateProcessAsUserW, ImpersonateLoggedOnUser
CloseHandle, UnmapViewOfFile, DuplicateHandle, GetCurrentProcess, MapViewOfFile, CreateFileMappingW, GetProcessHeap, HeapFree, lstrcmpW, K32GetModuleBaseNameW, K32GetModuleInformation, GetLastError, K32EnumProcessModules, CompareStringW, lstrlenW, CompareFileTime, GetSystemTimeAsFileTime, K32GetModuleFileNameExW, OpenProcess, GetCurrentProcessId, SetLastError, GetTickCount, HeapSetInformation, GetCurrentThreadId, LocalFree, FormatMessageW, GetModuleHandleW, CreateEventW, DelayLoadFailureHook, GetProcAddress, FreeLibrary, InterlockedCompareExchange, LoadLibraryExA, Sleep, HeapAlloc, TerminateProcess, QueryPerformanceCounter, GetModuleHandleA, SetUnhandledExceptionFilter, GetStartupInfoA, InterlockedExchange, UnhandledExceptionFilter, LoadLibraryA
WinSqmIsOptedIn, WinSqmSetDWORD, WinSqmEndSession, WinSqmStartSession, WinSqmSetString, WinSqmAddToAverageDWORD, WinSqmAddToStream, WinSqmIncrementDWORD, RtlAllocateAndInitializeSid, RtlFreeSid, WinSqmEventEnabled, WinSqmEventWrite
GetModuleBaseNameW, EnumProcessModules, GetModuleFileNameExW, GetModuleInformation
EnumWindows, RegisterShellHookWindow, SetWindowLongW, RegisterWindowMessageW, PostQuitMessage, IsWindow, DestroyWindow, DefWindowProcW, SetTimer, GetLastInputInfo, MoveWindow, GetSystemMetrics, KillTimer, SetShellWindow, SystemParametersInfoW, ShowWindow, GetWindowTextW, RegisterClassW, GetWindow, UnregisterClassW, DispatchMessageW, GetMessageW, GetUserObjectInformationW, GetThreadDesktop, GetProcessWindowStation, LoadStringW, FlashWindowEx, DestroyIcon, LoadIconW, GetWindowRect, FindWindowW, SendMessageW, GetWindowLongW, GetClassLongW, PostMessageW, GetWindowThreadProcessId, GetWindowInfo, GetClassNameW, LoadCursorW, GetWindowTextLengthW, SetTaskmanWindow, CreateWindowExW
GetFileVersionInfoW, GetFileVersionInfoSizeW, VerQueryValueW
WinStationGetSessionIds, WinStationRevertFromServicesSession, WinStationSwitchToServicesSession
WTSUnRegisterSessionNotification, WTSRegisterSessionNotification, WTSDisconnectSession, WTSQueryUserToken


Interactive services detection by Microsoft

Remove ui0detect.exe
Version:   6.3.9600.16384 (winblue_rtm.130821-1623)
MD5:   320878afecdbbd61bbe98624a6caac08
SHA1:   d72bca9397d8ee453d789c79d49730c6fee5294c
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is ui0detect.exe?

Services and system processes run in session 0. Interactive Services Detection (the blinking button on the taskbar) is a mitigation for legacy applications that detects if a service is trying to interact with the desktop. This is handled by the Interactive Services Detection (UI0Detect) service.

About ui0detect.exe (from Microsoft)

On a 32-bit version of Windows, the OS will detect desktop interaction and start the UI0Detect service and you will see the flashing taskbar button. On a 64-bit version of Windows, if the service is a


File name:ui0detect.exe
Publisher:Microsoft Corporation
Product name:Interactive services detection
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\ui0detect.exe
Original name:UI0Detect.exe.mui
File version:6.3.9600.16384 (winblue_rtm.130821-1623)
Product version:6.3.9600.16384
Size:40 KB (40,960 bytes)
Build date:8/22/2013 7:21 AM
Digital DNA
PE subsystem:Windows GUI
File packed:No
Code language:Microsoft Visual C++
More details


Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • 'UI0Detect'

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 34.00%
Windows 8.1 17.50%
Windows 7 Ultimate 15.00%
Windows 8.1 Pro 7.50%
Windows 7 Professional 6.00%
Windows 8 4.00%
Windows 8.1 Single Language 3.50%
Windows 8 Pro 3.00%
Windows 8 Single Language 2.50%
Windows 8.1 Pro with Media Center 2.00%
Windows 7 Home Basic 1.50%
Windows 8 Enterprise N 1.00%
Windows 8.1 N 0.50%
Windows Seven Black Edition 0.50%
Windows 8.1 Enterprise Evaluation 0.50%
Windows Vista Home Premium 0.50%
Windows 8 Enterprise 0.50%

Distribution by countryDistribution by country

United States installs about 45.73% of Interactive services detection.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Hewlett-Packard 18.90%
Dell 18.90%
ASUS 18.11%
Acer 12.60%
Toshiba 10.24%
Lenovo 8.66%
Sony 4.72%
Intel 2.36%
Samsung 1.57%
Alienware 1.18%
Medion 0.79%
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