6.2.9200.16384 (win8_rtm.120725-1247) 4.06%
6.1.7600.16385 (win7_rtm.090713-1255) 29.62%
6.1.7600.16385 (win7_rtm.090713-1255) 40.84%
5.2.3790.3959 (srv03_sp2_rtm.070216-1710) 0.08%
5.2.3790.3959 (srv03_sp2_rtm.070216-1710) 0.16%
5.1.2600.5512 (xpsp.080413-2111) 19.75%
5.1.2600.5512 (xpsp.080413-2111) 0.08%
5.1.2600.5512 (xpsp.080413-2111) 0.40%
5.1.2600.5512 (xpsp.080413-2111) 0.08%
5.1.2600.5512 (xpsp.080413-2111) 0.08%
5.1.2600.5512 (xpsp.080413-2111) 0.08%
5.1.2600.3311 (xpsp.080212-0005) 0.16%
5.1.2600.3300 (xpsp.080125-2028) 0.08%
5.1.2600.3244 (xpsp.071030-1537) 0.08%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) 4.30%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) 0.08%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) 0.08%



Windows Session Manager by Microsoft

Remove smss.exe
This is a Windows system installed file with Windows File Protection (WFP) enabled.


There are 17 versions of smss.exe in the wild, the latest version being 6.2.9200.16384 (win8_rtm.120725-1247). smss.exe is run as a standard windows process in the context of the SYSTEM account with extensive privileges. The average file size is about 57.91 KB. During the process's lifecycle, the typical CPU resource utilization is about 0.0012% including both foreground and background operations, the average private memory consumption is about 275.66 KB with the maximum memory reaching around 627.5 KB. Addionally, typically read and write I/O disk operations is about 1.4 KB per minute for reads and 5 Bytes per minute for writes.

What is smss.exe?

When a client first tries to access a protected resource that is hosted by a relying party, the client must first authenticate itself to a security token service (STS) that is trusted by the relying party. The STS then issues a security token to the client. The client presents this token to the relying party, which then grants the client access to the protected resource. However, you don’t want the client to have to re-authenticate to the STS for each request, especially because it might not eve

About smss.exe (from Microsoft)

HTTP, the underlying transport of the Web, is a memory-less protocol. Every time a client requests an application, HTTP has no idea of the caller's identity—it simply forwards the request to the Web s


File name:smss.exe
Publisher:Microsoft Corporation
Product name:Windows Session Manager
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\smss.exe
Original name:smss.exe.mui

VersionsAll file variations of smss.exe

MD5SHA-1File size
8e5870b864c38a3b766f9f0a23fb70c4 b539888d0a5b45f2e9dcdab23296a455e90b54bd 86.5 KB
16742790895960690237a5143cedec8b a81b48a5d6a06543ed36b7e6ea75c5e52b79dd37 68 KB
1911a3356fa3f77ccc825ccbac038c2a 706473ad489e5365af1e3431c4f8fe80a9139bc2 110 KB
97e9b4a202e645e7826be7597b335c47 df9034d7ca2777ddf2d5b14d4f29d0173ea0aba2 52.5 KB
c446bac962ac4f3b301db2920e4584e8 a044692a62017fec378af8490b98d927b6f2d03f 73.5 KB
5f816c1f539266d2d4c78694239da0b5 406503e95e8bf9b387b201aac141520e5f266ff4 49.5 KB
51940f4846936f417c830ec940250011 592e6763342e2bad3d51e9c5415bda500a0cf93d 49.5 KB
e3983e1d8659741c5fed623146d213ec b61d22d2d3375f93bbbc8d4d70537f6057adeaa4 49.5 KB
fa27117532939b14256ea11960799c1d e43cc9f8530c5678d30262749b57033a9441da5e 49.5 KB
4b536e2fe991293d8dcbea4fc6d3f20b 0e6051147e06e59984382ba82538ccc01e19ff8b 49.5 KB
ddd9bd9c8d7dc5c765c852b24448327b d7ab969942c8501ae26fc9881005945b96f40de3 49.5 KB
a6a6e04496e41962384acdd9d026f20c 55f25c3c8051beb25cf9d0858fac5e98e57574ce 49.5 KB
2786e578607b08d5f756eac3b7d966ac 7da357ea445bf0b86bb2c5986da5d3c0e2510cb6 49.5 KB
011a3ab949478d4e060eb0cb482b42c9 438a0a634c0ee859cfbcb6497d158053b7eaf0da 49.5 KB
bd7fb0957c716f1a60333aee04de2178 9ca5784a8e745f083c0a90c25d3fddc7554852ad 49.5 KB
e60f06ded5e9a6c409bd08a71099b0d3 7debba94af530d2a4f01f889e225c88a2483ffaa 49.5 KB
adae6840156bcbeafa549410cb763c9d 967b0bb419f47f6f9cfd2cfadf17c279f6d2869a 49.5 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 38.00%
Windows 7 Home Premium 35.75%
Windows 7 Professional 9.25%
Windows 8 Pro 5.75%
Windows 7 Home Basic 2.25%
Windows 7 Ultimate N 2.25%
Windows 7 Starter 2.00%
Windows 7 Enterprise 1.25%
Windows 8 0.75%
Windows 8 Enterprise 0.75%
Windows 8 Enterprise Evaluation 0.50%
Windows 8 Pro with Media Center 0.50%
Windows Seven Black Edition 0.50%
Windows 8 Pro N 0.25%
Microsoft Windows 7 Professional 0.25%

Distribution by countryDistribution by country

United States installs about 33.24% of Windows Session Manager.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 20.81%
Hewlett-Packard 20.81%
Acer 14.72%
ASUS 11.68%
Toshiba 10.66%
Lenovo 6.60%
Sony 3.05%
Samsung 2.28%
Intel 2.03%
MSI 1.02%
American Megatrends 0.76%
Sahara 0.51%
Medion 0.51%
Compaq 0.51%
Gateway 0.51%
Packard Bell 0.25%
Alienware 0.25%
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