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Running, Malicious, Unwanted, Memory Hogs

Welcome to the PC Pitstop Process Library. We maintain an extensive list of common processes running on today’s PCs. Within this library you can learn more about the processes running on your machine.

Process Library Detail

What is msiexec.exe? Windows Installer?

Vendor:      Microsoft
Product:     Windows Installer
Vendor Website:     
Last Seen by PC Pitstop:      No Data

Process is Bad PC Pitstop has analyzed this process and determined that there is a high likelihood that it is bad.
Process is questionablePC Pitstop has analyzed this process and determined that the safety of this process is questionable.
Process is goodPC Pitstop has analyzed this process and determined that there is a high likelihood that it is good.
Process is goodThis process is a Microsoft or Windows process, but many viruses use this file name to escape notice.

Purpose: msiexec.exe provides support for Windows Installer. This service will be started when you run setup programs based on Windows Installer, which often end in ".msi". If you are seeing this program running constantly, go to Administrative Tools | Services and make sure the Windows Installer service is set to Manual (not Automatic).

msiexec.exe is a user invoked program and a normal part of PC operations. No action required.


msiexec.exe is known to be a bad process. Learn more about protecting your PC from these bad processes with PC Matic.
msiexec.exe could be a harmful process. Learn more about protecging your PC from these potential harmful processes with PC Matic.
This information brought to you by PC Matic. PC Matic's real-time protection, Super Shield, blocks ALL bad and unknown threats to keep your PC secure.
msiexec.exe is a Microsoft or Windows process but some versions of this exe carry viruses.
Learn more about protecting yourself from bad versions of this file with PC Matic.

Percentage of recently scanned PC's with this process running: 1.74%
Average CPU use for this program: 0%
Average RAM for this program: 7 MB


Program Name MD5 Count
msiexec.exe

MD5 Hashes

# Status MD5 Revision Name Size
1 Status 0xec31a58b8648faf06053499ee866b88b 3/15/2018 9:32:00 PM Unknown Unknown Windows Installer 228 KB
2 Status 0x35e4bb9997323a138df04cf11f5a9884 6/18/2017 6:15:00 PM Unknown Unknown Windows Installer 77 KB
3 Status 0x3e92c5ea75da5429bf4fb6c4672c66a8 12/17/2016 10:53:00 PM Unknown Unknown Windows Installer 77 KB
4 Status 0x275a5afe52c7440946b89215913446f5 8/2/2016 6:58:00 AM Unknown Unknown Windows Installer 77 KB
5 Status 0x68c6ade4d4ee641a994c3a3bdf424232 1/4/2015 6:18:00 AM Unknown Unknown Windows Installer 96 KB
6 Status 0xa1716d02eb4de411e0cec7cf2c165f5a 1/1/2015 1:09:00 AM Unknown 4.0.6000.16386 (vista_rtm.061101-2205) Windows Installer 70 KB
7 Status 0x8b53ca4a623145b90867175702026ebd 11/20/2014 1:50:00 AM Unknown Unknown Windows Installer 97 KB
8 Status 0x61b30ba463ef9b84fc18ddf275bfc123 10/25/2014 11:24:00 AM Unknown Unknown Windows Installer 77 KB
9 Status 0x972a36f7a5138699c9c78bcac43dcc73 9/21/2014 3:14:00 PM Unknown Unknown Windows Installer 77 KB
10 Status 0x5bca47ea2f8a8b63a1503baea0c77d3c 9/3/2014 12:02:00 AM Unknown 3.1.4001.3300 Windows Installer 77 KB
11 Status 0xe3f6413c00be76ccc539eab2f906ceb4 8/25/2014 2:13:00 AM Unknown 3.0.3790.2538 Windows Installer 75 KB
12 Status 0x0a2b72ce47a477a6290a0c12845aec15 8/12/2014 2:41:00 PM Unknown Unknown Windows Installer 97 KB
13 Status 0x2571596c047199de60bd72e29eda4b08 11/15/2013 1:40:00 PM Unknown Unknown Windows Installer 611 KB
14 Status 0xeb7f9e849937da76d61e0dc63f484c3a 9/6/2013 9:48:00 PM Unknown Unknown Windows Installer 579 KB
15 Status 0x55a6bfd9a835ecb30459e46e9669b80f 8/15/2012 11:27:00 PM Unknown Unknown Windows Installer 77 KB
16 Status 0x21275f7fa5fadb98618d293fdebbfcc1 3/28/2012 3:28:00 AM Unknown Unknown Windows Installer 141 KB
17 Status 0x0ff60cc9e72efc863b40b906e3372d81 2/6/2012 10:06:00 PM Unknown 2.0.2600.1106 Windows Installer 63 KB
18 Status 0x49dc4f12ec43f31f122d199c4e932a5b 2/5/2012 9:26:00 PM Unknown Unknown Windows Installer 77 KB
19 Status 0x0055742f61ec4924110f7b097ed5787c 1/31/2012 10:01:00 PM Unknown Unknown Windows Installer 77 KB
20 Status 0x56f071674bf1606b94a6f87d7c3b2e49 1/28/2012 6:12:00 PM Unknown 3.1.4000.1823 Windows Installer 94 KB
21 Status 0xd2f9f2a1888b9fc75ad677d61369d965 1/26/2012 2:11:00 AM Unknown 3.0.3790.2180 Windows Installer 75 KB
22 Status 0xbddfb9f628ded5aa19f4442f5e729166 1/25/2012 2:41:00 PM Unknown Unknown Windows Installer 111 KB
23 Status 0xb3f0f2ddba4b53b1350c8b9408c0ec80 1/24/2012 10:03:00 PM Unknown Unknown Windows Installer 77 KB
24 Status 0xb038d40785fa669bd8c3e0252909b4c2 1/19/2012 4:31:00 PM Unknown 4.0.6000.16386 (vista_rtm.061101-2205) Windows Installer 70 KB
25 Status 0x0ee6dd376bb38fece68b3e52b9ca51c7 1/18/2012 9:18:00 AM Unknown 3.1.4001.3311 Windows Installer 77 KB


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