7-Zip 19.00 Silent Install (How-To Guide)

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7-Zip is a popular open-source file archiver used to place groups of files within compressed containers known as archives. This article will serve as an informative guide and give you a clear understanding of how to perform a silent installation of 7-Zip 19.00 from the command line using both EXE & MSI installers.

How to Install 7-Zip Silently

7-Zip 19.00 (32-bit) Silent Install (EXE)

  1. Navigate to: https://www.7-zip.org/a/7z1900.exe
  2. Download the 7-Zip 32-bit EXE to a folder created at (C:\Downloads)
  3. Open an Elevated Command Prompt by Right-Clicking on Command Prompt and select Run as Administrator
  4. Navigate to the C:\Downloads folder
  5. Enter the following command: 7z1900.exe /S
  6. Press Enter

After a few moments you should see the 7-Zip shortcut in the Start Menu, Installation Directory, and Programs and Features in the Control Panel.

Software Title:7-Zip 19.00 (32-bit)
Vendor:Igor Pavlov
Version:19.00
Architecture:x86
Installer Type:EXE
Silent Install Switch 7z1900.exe /S
Silent Uninstall Switch (32-bit System) "%ProgramFiles%\7-Zip\Uninstall.exe" /S
Silent Uninstall Switch (64-bit System) "%ProgramFiles(x86)%\7-Zip\Uninstall.exe" /S
7-Zip 19.00 Download Link:7-Zip 19.00 32-bit EXE
PowerShell Script:7-Zip | PowerShell Script
Detection Script:7-Zip | Custom Detection Script

7-Zip 19.00 (64-bit) Silent Install (EXE)

  1. Navigate to: https://www.7-zip.org/a/7z1900-x64.exe
  2. Download the 7-Zip 64-bit EXE to a folder created at (C:\Downloads)
  3. Open an Elevated Command Prompt by Right-Clicking on Command Prompt and select Run as Administrator
  4. Navigate to the C:\Downloads folder
  5. Enter the following command: 7z1900-x64.exe /S
  6. Press Enter

After a few moments you should see the 7-Zip shortcut in the Start Menu, Installation Directory, and Programs and Features in the Control Panel.

Software Title:7-Zip 19.00 (64-bit)
Vendor:Igor Pavlov
Version:19.00
Architecture:x64
Installer Type:EXE
Silent Install Switch 7z1900-x64.exe /S
Silent Uninstall Switch"%ProgramFiles%\7-Zip\Uninstall.exe" /S
7-Zip 19.00 Download Link:7-Zip 19.00 64-bit EXE
PowerShell Script:7-Zip | PowerShell Script
Detection Script:7-Zip | Custom Detection Script

7-Zip 19.00 (32-bit) Silent Install (MSI)

  1. Navigate to: https://www.7-zip.org/a/7z1900.msi
  2. Download the 7-Zip 32-bit MSI to a folder created at (C:\Downloads)
  3. Open an Elevated Command Prompt by Right-Clicking on Command Prompt and select Run as Administrator
  4. Navigate to the C:\Downloads folder
  5. Enter the following command: MsiExec.exe /i 7z1900.msi /qn
  6. Press Enter

After a few moments you should see the 7-Zip shortcut in the Start Menu, Installation Directory, and Programs and Features in the Control Panel.

Software Title:7-Zip 19.00 (32-bit)
Vendor:Igor Pavlov
Version:19.00
Architecture:x86
Installer Type:MSI
Silent Install Switch MsiExec.exe /i 7z1900.msi /qn
Silent Uninstall SwitchMsiExec.exe /x {23170F69-40C1-2701-1900-000001000000} /qn
Repair Command MsiExec.exe /fa {23170F69-40C1-2701-1900-000001000000} /qn
7-Zip 19.00 Download Link:7-Zip 19.00 32-bit MSI
PowerShell Script:7-Zip | PowerShell Script
Detection Script:7-Zip | Custom Detection Script

7-Zip 19.00 (64-bit) Silent Install (MSI)

  1. Navigate to: https://www.7-zip.org/a/7z1900-x64.msi
  2. Download the 7-Zip 64-bit MSI to a folder created at (C:\Downloads)
  3. Open an Elevated Command Prompt by Right-Clicking on Command Prompt and select Run as Administrator
  4. Navigate to the C:\Downloads folder
  5. Enter the following command: MsiExec.exe /i 7z1900-x64.msi /qn
  6. Press Enter

After a few moments you should see the 7-Zip shortcut in the Start Menu, Installation Directory, and Programs and Features in the Control Panel.

Software Title:7-Zip 19.00 (64-bit)
Vendor:Igor Pavlov
Version:19.00
Architecture:x64
Installer Type:MSI
Silent Install Switch MsiExec.exe /i 7z1900-x64.msi /qn
Silent Uninstall SwitchMsiExec.exe /x {23170F69-40C1-2702-1900-000001000000} /qn
Repair Command MsiExec.exe /fa {23170F69-40C1-2702-1900-000001000000} /qn
7-Zip 19.00 Download Link:7-Zip 19.00 64-bit MSI
PowerShell Script:7-Zip | PowerShell Script
Detection Script:7-Zip | Custom Detection Script

The information above provides a quick overview of the software title, vendor, silent install, and silent uninstall switches. The download links provided take you directly to the vendors website. Continue reading if you are interested in additional details and configurations.

Additional Configurations

Create a 7-Zip Installation Log File

The 7-Zip MSI installer offers the option to generate a log file during installation to assist with troubleshooting should any problems arise. You can use the following commands to create a verbose log file with details about the installation.

7-Zip 19.00 (32-bit) Silent Install with Logging

MsiExec.exe /i 7z1900.msi /qn /L*V "%WINDIR%\Temp\7zip-Install.log"

7-Zip 19.00 (64-bit) Silent Install with Logging

MsiExec.exe /i 7z1900-x64.msi /qn /L*V "%WINDIR%\Temp\7zip-Install.log"

Change the 7-Zip Default Installation Directory

You can also change the default installation directory by using the following command line parameters. In this example, I’m installing 7-Zip to “C:\7-Zip 19.0”

Configure Installation Directory for 7-Zip EXE

7z1900-x64.exe /S /D="C:\7-Zip 19.0"

Configure Installation Directory for 7-Zip MSI

MsiExec.exe /i 7z1900-x64.msi INSTALLDIR="C:\7-Zip 19.0" /qn

Configure 7-Zip File Associations

The 7-Zip installer does not configure file associations by default. If you would like to configure the file associations for 7-Zip, you can follow these steps.

  1. Open Notepad or your favorite text editor
  2. Add the following lines:
Windows Registry Editor Version 5.00
 
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.7z]
@="7-Zip.7z"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.arj]
@="7-Zip.arj"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.bz2]
@="7-Zip.bz2"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.bzip2]
@="7-Zip.bzip2"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.cab]
@="7-Zip.cab"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.cpio]
@="7-Zip.cpio"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.deb]
@="7-Zip.deb"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.dmg]
@="7-Zip.dmg"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.gz]
@="7-Zip.gz"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.gzip]
@="7-Zip.gzip"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.hfs]
@="7-Zip.hfs"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.lha]
@="7-Zip.lha"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.lzh]
@="7-Zip.lzh"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.lzma]
@="7-Zip.lzma"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.rar]
@="7-Zip.rar"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.rpm]
@="7-Zip.rpm"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.split]
@="7-Zip.split"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.swm]
@="7-Zip.swm"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.tar]
@="7-Zip.tar"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.taz]
@="7-Zip.taz"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.tbz]
@="7-Zip.tbz"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.tbz2]
@="7-Zip.tbz2"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.tgz]
@="7-Zip.tgz"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.tpz]
@="7-Zip.tpz"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.wim]
@="7-Zip.wim"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.xar]
@="7-Zip.xar"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.z]
@="7-Zip.z"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.zip]
@="7-Zip.zip"
 
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.7z]
@="7z Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.7z\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,0"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.7z\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.arj]
@="arj Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.arj\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,4"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.arj\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.bz2]
@="bz2 Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.bz2\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,2"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.bz2\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.bzip2]
@="bzip2 Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.bzip2\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,2"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.bzip2\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.cab]
@="cab Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.cab\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,7"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.cab\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.cpio]
@="cpio Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.cpio\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,12"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.cpio\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.deb]
@="deb Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.deb\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,11"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.deb\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.dmg]
@="dmg Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.dmg\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,17"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.dmg\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.gz]
@="gz Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.gz\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,14"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.gz\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.gzip]
@="gzip Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.gzip\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,14"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.gzip\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.hfs]
@="hfs Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.hfs\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,18"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.hfs\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.lha]
@="lha Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.lha\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,6"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.lha\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.lzh]
@="lzh Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.lzh\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,6"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.lzh\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.lzma]
@="lzma Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.lzma\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,16"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.lzma\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.rar]
@="rar Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.rar\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,3"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.rar\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.rpm]
@="rpm Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.rpm\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,10"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.rpm\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.split]
@="split Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.split\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,9"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.split\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.swm]
@="swm Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.swm\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,15"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.swm\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tar]
@="tar Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tar\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,13"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tar\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.taz]
@="taz Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.taz\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,5"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.taz\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tbz]
@="tbz Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tbz\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,2"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tbz\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tbz2]
@="tbz2 Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tbz2\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,2"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tbz2\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tgz]
@="tgz Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tgz\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,14"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tgz\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tpz]
@="tpz Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tpz\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,14"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.tpz\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.wim]
@="wim Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.wim\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,15"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.wim\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.xar]
@="xar Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.xar\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,19"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.xar\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.z]
@="z Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.z\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,5"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.z\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.zip]
@="zip Archive"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.zip\DefaultIcon]
@="C:\\Program Files\\7-Zip\\7z.dll,1"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\7-Zip.zip\shell\open\command]
@="\"C:\\Program Files\\7-Zip\\7zFM.exe\" \"%1\""

Save the file to C:\Downloads and name it: 7zipFileAssoc.reg

  1. Open an Elevated Command Prompt by Right-Clicking on Command Prompt and select Run as Administrator
  2. Navigate to the C:\Downloads folder
  3. Enter the following command:
Regedit.exe /s 7zipFileAssoc.reg

How to Uninstall 7-Zip 19.00 Silently

Check out the following posts for a scripted solution:

7-Zip Install and Uninstall (PowerShell)
7-Zip Silent Uninstall (PowerShell)
  1. Open an Elevated Command Prompt by Right-Clicking on Command Prompt and select Run as Administrator
  2. Enter one of the following commands:

7-Zip 32-bit Silent Uninstall (EXE) on 32-bit System

"%ProgramFiles%\7-Zip\Uninstall.exe" /S

7-Zip 32-bit Silent Uninstall (EXE) on 64-bit System

"%ProgramFiles(x86)%\7-Zip\Uninstall.exe" /S

7-Zip 64-bit Silent Uninstall (EXE) on 64-bit System

"%ProgramFiles%\7-Zip\Uninstall.exe" /S

7-Zip 19.00 (32-bit) Silent Uninstall (MSI)

MsiExec.exe /x {23170F69-40C1-2701-1900-000001000000} /qn

7-Zip 19.00 (64-bit) Silent Uninstall (MSI)

MsiExec.exe /x {23170F69-40C1-2702-1900-000001000000} /qn

Always make sure to test everything in a development environment prior to implementing anything into production. The information in this article is provided “As Is” without warranty of any kind.