Commands for installing OpenSSL without prompts, removing it again and detecting it from deployment tools. A command is shown only when it is certain: from the manifest or the installer technology’s documented default.
Related guide: Silent install switches: MSI, NSIS, Inno Setup · Uninstall a program with the registry or PowerShell
With winget
PowerShell
winget install --id ShiningLight.OpenSSL.Dev -e --silent --accept-package-agreements --accept-source-agreementswinget upgrade --id ShiningLight.OpenSSL.Dev -e --silentwinget uninstall --id ShiningLight.OpenSSL.Dev -e --silentBy installer
64-bit · EXE (Inno Setup) · All users
Silent install
Win64OpenSSL-4_1_0.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Custom folder
Win64OpenSSL-4_1_0.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP- /DIR="C:\Apps\openssl"- Uninstall registry key
- HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenSSL (64-bit)_is1
64-bit · MSI · All users
Silent install
msiexec /i Win64OpenSSL-4_1_0.msi /qn /norestartWrite a log
msiexec /i Win64OpenSSL-4_1_0.msi /qn /norestart /l*v "%TEMP%\openssl-install.log"Uninstall
msiexec /x {3A7C9215-13B0-43B1-BF3F-3859FA49D643} /qn /norestart- MSI product code
- {3A7C9215-13B0-43B1-BF3F-3859FA49D643}
- Uninstall registry key
- HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{3A7C9215-13B0-43B1-BF3F-3859FA49D643}
- UpgradeCode
- {8BA62D91-E3D5-4E94-AEDB-7BB3BA1B578E}
- Install folder
- %ProgramFiles%\OpenSSL
ARM64 · EXE (Inno Setup) · All users
Silent install
Win64ARMOpenSSL-4_1_0.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Custom folder
Win64ARMOpenSSL-4_1_0.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP- /DIR="C:\Apps\openssl"- Uninstall registry key
- HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OpenSSL for ARM (64-bit)_is1
ARM64 · MSI · All users
Silent install
msiexec /i Win64ARMOpenSSL-4_1_0.msi /qn /norestartWrite a log
msiexec /i Win64ARMOpenSSL-4_1_0.msi /qn /norestart /l*v "%TEMP%\openssl-install.log"Uninstall
msiexec /x {4B252C43-6215-4EC4-95D3-B68E591E3DC7} /qn /norestart- MSI product code
- {4B252C43-6215-4EC4-95D3-B68E591E3DC7}
- Uninstall registry key
- HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{4B252C43-6215-4EC4-95D3-B68E591E3DC7}
- UpgradeCode
- {48963397-0F00-40E0-A37F-740EBBA6E4D5}
- Install folder
- %ProgramFiles%\OpenSSL
32-bit · EXE (Inno Setup) · All users
Silent install
Win32OpenSSL-4_1_0.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Custom folder
Win32OpenSSL-4_1_0.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP- /DIR="C:\Apps\openssl"- Uninstall registry key
- HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\OpenSSL (32-bit)_is1
32-bit · MSI · All users
Silent install
msiexec /i Win32OpenSSL-4_1_0.msi /qn /norestartWrite a log
msiexec /i Win32OpenSSL-4_1_0.msi /qn /norestart /l*v "%TEMP%\openssl-install.log"Uninstall
msiexec /x {9C5E60CD-A5F2-43F6-B540-04CDBFAA58F5} /qn /norestart- MSI product code
- {9C5E60CD-A5F2-43F6-B540-04CDBFAA58F5}
- Uninstall registry key
- HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{9C5E60CD-A5F2-43F6-B540-04CDBFAA58F5}
- UpgradeCode
- {7B69213B-526B-4E63-B03A-E5701A74CCD5}
- Install folder
- %ProgramFiles(x86)%\OpenSSL
PowerShell: download, verify, install
Downloads the official file, checks its SHA256 and installs it silently.
install-openssl.ps1
$url = 'https://slproweb.com/download/Win64OpenSSL-4_1_0.exe'
$sha256 = 'C670E809BB7DAE85C54BCF734D4981D1523F1CB1B6B77947AC3E5DF46FF1CA48'
$file = Join-Path $env:TEMP 'Win64OpenSSL-4_1_0.exe'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process -FilePath $file -ArgumentList '/VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-' -Wait install-openssl.ps1
$url = 'https://slproweb.com/download/Win64OpenSSL-4_1_0.msi'
$sha256 = '42E47B1292787040EB56B54FC62B16D3C5E3EB85FDCB88F213A8D02F2148BC52'
$file = Join-Path $env:TEMP 'Win64OpenSSL-4_1_0.msi'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process msiexec.exe -ArgumentList '/i', ('"{0}"' -f $file), '/qn', '/norestart' -Wait install-openssl.ps1
$url = 'https://slproweb.com/download/Win64ARMOpenSSL-4_1_0.exe'
$sha256 = 'B47929ACFE205F9F82FD261FC80CE792741DAE875F0F8D8CA36B9112867D2604'
$file = Join-Path $env:TEMP 'Win64ARMOpenSSL-4_1_0.exe'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process -FilePath $file -ArgumentList '/VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-' -Wait install-openssl.ps1
$url = 'https://slproweb.com/download/Win64ARMOpenSSL-4_1_0.msi'
$sha256 = '86623D6C0AF87BDDACB88C615A5631A76AA99633CEF764A6A3A384FE40BFC558'
$file = Join-Path $env:TEMP 'Win64ARMOpenSSL-4_1_0.msi'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process msiexec.exe -ArgumentList '/i', ('"{0}"' -f $file), '/qn', '/norestart' -Wait install-openssl.ps1
$url = 'https://slproweb.com/download/Win32OpenSSL-4_1_0.exe'
$sha256 = '42917E337D859DF9BF3A3A1273786914A8CC67D53883D931E8B3466E6EB071B1'
$file = Join-Path $env:TEMP 'Win32OpenSSL-4_1_0.exe'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process -FilePath $file -ArgumentList '/VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-' -Wait install-openssl.ps1
$url = 'https://slproweb.com/download/Win32OpenSSL-4_1_0.msi'
$sha256 = '7F24276FA56D10A0B619C6FDA3A4CF8FFC28E6F687468E84E425413F09CAF0F4'
$file = Join-Path $env:TEMP 'Win32OpenSSL-4_1_0.msi'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process msiexec.exe -ArgumentList '/i', ('"{0}"' -f $file), '/qn', '/norestart' -Wait