Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.1.7600.16385 (win7_rtm.090713-1255) 18.75%
6.1.7600.16385 (win7_rtm.090713-1255) 62.50%
6.1.7600.16385 (win7_rtm.090713-1255) 6.25%
6.1.7600.16385 (win7_rtm.090713-1255) 12.50%
(Note, Microsoft publishes each variation of this file with the same version, but the hashes are unique.)

Relationships

Parent process
Related files

psxss.exe

Microsoft Windows Subsystem for UNIX-based Applications by Microsoft

Remove psxss.exe
Version:   6.1.7600.16385 (win7_rtm.090713-1255)
MD5:   53398f2dc911590c5c224605e9f470bb
SHA1:   f98dd5f2dfaddbd4283c30fac9aa7369c03976bd
SHA256:   923b85b2c37a8829971773fe4ce75e366a58ef02924bd67536253c51ae6ff117
This is a Windows system installed file with Windows File Protection (WFP) enabled.

Overview

psxss.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 smss.exe (Windows Session Manager by Microsoft). The assembly utilizes the .NET run-time framework (which is required to be installed on the PC). This version is designed to run on Windows 7 and is compiled as a 32 bit program.

DetailsDetails

File name:psxss.exe
Publisher:Microsoft Corporation
Product name:Microsoft Windows Subsystem for UNIX-based Applications
Description:SUA Subsystem Server
Typical file path:C:\Windows\System32\psxss.exe
Original name:psxss.exe.mui
File version:6.1.7600.16385 (win7_rtm.090713-1255)
Product version:6.1.7600.16385
Size:642 KB (657,408 bytes)
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:0.00059176%
0.028634%
Kernel CPU:0.00046738%
0.013761%
User CPU:0.00012439%
0.014873%
Kernel CPU time:499,236 ms/min
100,923,805ms/min
CPU cycles:3,552/sec
17,470,203/sec
Memory
Private memory:2.04 MB
21.59 MB
Private (maximum):3.26 MB
Private (minimum):1.8 MB
Non-paged memory:2.04 MB
21.59 MB
Virtual memory:29.01 MB
140.96 MB
Virtual memory (peak):29.51 MB
169.69 MB
Working set:1.85 MB
18.61 MB
Working set (peak):4.45 MB
37.95 MB
Page faults:2,988/min
2,039/min
I/O
I/O write transfer:4 Bytes/sec
274.99 KB/min
I/O write operations:1/sec
227/min
I/O other transfer:2 Bytes/sec
448.09 KB/min
I/O other operations:1/sec
1,671/min
Resource allocations
Threads:18
12
Handles:797
600

BehaviorsProcess properties

Integrety level:System
Platform:32-bit
Command line:%systemroot%\system32\psxss.exe
Owner:SYSTEM
Parent process:smss.exe (Windows Session Manager by Microsoft)

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 100.00%

Distribution by countryDistribution by country

United States installs about 25.00% of Microsoft Windows Subsystem for UNIX-based Applications.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 42.11%
ASUS 21.05%
Acer 21.05%
Sahara 5.26%
GIGABYTE 5.26%
Hewlett-Packard 5.26%
Should I remove It? Clean your PC of unwanted adware, toolbars and bloatware.

Download it for FREE