Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.3.9600.16384 (winblue_rtm.130821-1623) 5.49%
6.3.9431.0 (winmain_bluemp.130615-1214) 0.61%
6.2.9200.16384 (win8_rtm.120725-1247) 3.66%
6.2.9200.16384 (win8_rtm.120725-1247) 18.90%
6.1.7601.17514 (win7sp1_rtm.101119-1850) 14.63%
6.1.7601.17514 (win7sp1_rtm.101119-1850) 31.71%
6.1.7600.16385 (win7_rtm.090713-1255) 3.66%
6.1.7600.16385 (win7_rtm.090713-1255) 5.49%
6.00.2900.5512 (xpsp.080413-2105) 4.88%
6.00.2900.5512 (xpsp.080413-2105) 0.61%
6.00.2900.3311 (xpsp.080212-0004) 1.22%
6.0.6001.18000 (longhorn_rtm.080118-1840) 1.22%
6.0.6001.18000 (longhorn_rtm.080118-1840) 7.93%

Relationships

logonui.exe

Windows Logon User Interface Host by Microsoft

Remove logonui.exe
Version:   6.1.7600.16385 (win7_rtm.090713-1255)
MD5:   1b97ebf7f60798814c4e5c8fdc79ead2
SHA1:   ab63c12108b2264fc3f7146cdebf883265118376
SHA256:   deef2c11b3c77ff879ce51c48b33918d213477c084ff81ac6a4bf72cb1dc6325
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is logonui.exe?

Windows Logon UI (LogonUI.exe) implements the graphical user interface shown when a user is asked to log in to the local machine.

Overview

LogonUI.exe executes as a process with the local user's privileges typically within the context of its parent winlogon.exe (Windows Logon Application by Microsoft). This version is designed to run on Windows 7 and is compiled as a 32 bit program.

DetailsDetails

File name:LogonUI.exe
Publisher:Microsoft Corporation
Product name:Windows Logon User Interface Host
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\logonui.exe
File version:6.1.7600.16385 (win7_rtm.090713-1255)
Product version:6.1.7600.16385
Size:10.5 KB (10,752 bytes)
Digital DNA
PE subsystem:Windows GUI
Entropy:5.244596
File packed:No
Code language:Microsoft Visual C++
.NET CLR:No
More details

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.00192508%
0.028634%
Kernel CPU:0.00111070%
0.013761%
User CPU:0.00081438%
0.014873%
Kernel CPU time:65 ms/min
100,923,805ms/min
CPU cycles:13,631/sec
17,470,203/sec
Memory
Private memory:10.31 MB
21.59 MB
Private (maximum):15.79 MB
Private (minimum):15.58 MB
Non-paged memory:10.31 MB
21.59 MB
Virtual memory:95.69 MB
140.96 MB
Virtual memory (peak):96.36 MB
169.69 MB
Working set:14.9 MB
18.61 MB
Working set (peak):28.1 MB
37.95 MB
Page faults:12,131/min
2,039/min
I/O
I/O read transfer:180 Bytes/sec
1.02 MB/min
I/O read operations:1/sec
343/min
I/O write transfer:0 Bytes/sec
274.99 KB/min
I/O write operations:1/sec
227/min
I/O other transfer:37 Bytes/sec
448.09 KB/min
I/O other operations:2/sec
1,671/min
Resource allocations
Threads:6
12
Handles:196
600
GUI GDI count:104
103
GUI GDI peak:109
142
GUI USER count:12
49
GUI USER peak:15
71

BehaviorsProcess properties

Platform:32-bit
Command lines:
  • "logonui.exe" /flagC:0x0
Owner:User
Parent process:winlogon.exe (Windows Logon Application by Microsoft)

ResourcesThreads

Averages
 
LogonUI.exe (main module)
Total CPU:0.00602426%
0.272967%
Kernel CPU:0.00298364%
0.107585%
User CPU:0.00304062%
0.165382%
CPU cycles:121,991/sec
5,741,424/sec
Memory:24 KB
1.16 MB
authui.dll
Total CPU:0.00061398%
Kernel CPU:0.00061398%
User CPU:0.00000000%
CPU cycles:19,522/sec
Memory:1.71 MB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 29.41%
Windows 7 Ultimate 12.42%
Windows 7 Professional 11.76%
Windows 8 9.15%
Windows 8 Pro 9.15%
Windows Vista Home Premium 5.23%
Windows 8 Single Language 3.27%
Windows 8.1 2.61%
Windows Vista Business 1.96%
Windows 7 Starter 1.96%
Windows 7 Home Basic 1.96%
Windows 8.1 Pro 1.31%
Windows 8.1 Single Language 1.31%
Windows 8 Pro with Media Center 1.31%
Windows 8 Enterprise 1.31%
Windows Vista Home Basic 1.31%
Windows 8.1 Enterprise Evaluation 0.65%
Windows 8.1 Pro Preview 0.65%
Windows Server 2008 Standard 0.65%
Windows 7 Ultimate N 0.65%
Microsoft Windows XP 0.65%
23 other Windows OS version

Distribution by countryDistribution by country

United States installs about 44.67% of Windows Logon User Interface Host.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 19.23%
Toshiba 19.23%
Hewlett-Packard 16.35%
ASUS 11.54%
Sony 9.62%
Acer 8.65%
Lenovo 5.77%
Alienware 3.85%
GIGABYTE 1.92%
Samsung 1.92%
Gateway 1.92%
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