Export

cmd.exe, require elevated prompt:

Only sessions:

regedit /e "%USERPROFILE%\Desktop\putty-sessions.reg" HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\Sessions

All settings:

regedit /e "%USERPROFILE%\Desktop\putty.reg" HKEY_CURRENT_USER\Software\SimonTatham

Powershell:

Only sessions:

reg export HKCU\Software\SimonTatham\PuTTY\Sessions ([Environment]::GetFolderPath("Desktop") + "\putty-sessions.reg")

All settings:

reg export HKCU\Software\SimonTatham ([Environment]::GetFolderPath("Desktop") + "\putty.reg")

Import

Double-click on the *.reg file and accept the import.

Alternative ways:

cmd.exe, require elevated command prompt:

regedit /i putty-sessions.regregedit /i putty.reg

PowerShell:

reg import putty-sessions.regreg import putty.reg

Note: do not replace SimonTatham with your username.

Note: It will create a reg file on the Desktop of the current user.

Note: It will not export related SSH keys.

When I tried the other solutions I got this error:

Registry editing has been disabled by your administrator.

Phooey to that, I say!

I put together the below powershell scripts for exporting and importing PuTTY settings. The exported file is a windows .reg file and will import cleanly if you have permission, otherwise use import.ps1 to load it.

Warning: messing with the registry like this is a Bad Idea™, and I don't really know what I'm doing. Use the below scripts at your own risk, and be prepared to have your IT department re-image your machine and ask you uncomfortable questions about what you were doing.

On the source machine:

.\export.ps1

On the target machine:

.\import.ps1 > cmd.ps1# Examine cmd.ps1 to ensure it doesn't do anything nasty.\cmd.ps1

export.ps1

# All settings$registry_path = "HKCU:\Software\SimonTatham"# Only sessions#$registry_path = "HKCU:\Software\SimonTatham\PuTTY\Sessions"$output_file = "putty.reg"$registry = ls "$registry_path" -Recurse"Windows Registry Editor Version 5.00" | Out-File putty.reg"" | Out-File putty.reg -Appendforeach ($reg in $registry) {  "[$reg]" | Out-File putty.reg -Append  foreach ($prop in $reg.property) {    $propval = $reg.GetValue($prop)    if ("".GetType().Equals($propval.GetType())) {      '"' + "$prop" + '"' + "=" + '"' + "$propval" + '"' | Out-File putty.reg -Append    } elseif ($propval -is [int]) {      $hex = "{0:x8}" -f $propval      '"' + "$prop" + '"' + "=dword:" + $hex | Out-File putty.reg -Append    }  }  "" | Out-File putty.reg -Append}

import.ps1

$input_file = "putty.reg"$content = Get-Content "$input_file""Push-Location""cd HKCU:\"foreach ($line in $content) {   If ($line.StartsWith("Windows Registry Editor")) {    # Ignore the header  } ElseIf ($line.startswith("[")) {    $section = $line.Trim().Trim('[', ']')    'New-Item -Path "' + $section + '" -Force' | %{ $_ -replace 'HKEY_CURRENT_USER\\', '' }  } ElseIf ($line.startswith('"')) {    $linesplit = $line.split('=', 2)    $key = $linesplit[0].Trim('"')    if ($linesplit[1].StartsWith('"')) {      $value = $linesplit[1].Trim().Trim('"')    } ElseIf ($linesplit[1].StartsWith('dword:')) {      $value = [Int32]('0x' + $linesplit[1].Trim().Split(':', 2)[1])      'New-ItemProperty "' + $section + '" "' + $key + '" -PropertyType dword -Force' | %{ $_ -replace 'HKEY_CURRENT_USER\\', '' }    } Else {      Write-Host "Error: unknown property type: $linesplit[1]"      exit    }    'Set-ItemProperty -Path "' + $section + '" -Name "' + $key + '" -Value "' + $value + '"' | %{ $_ -replace 'HKEY_CURRENT_USER\\', '' }  }}"Pop-Location"

Apologies for the non-idiomatic code, I'm not very familiar with Powershell. Improvements are welcome!

1. Launch Run, then type in the Open drop down window: regedit

2. Navigate to, just like in Window's Explorer:
   HKEY_CURRENT_USER\Software\SimonTatham

3. Right click on 'SimonTatham' key (directory icon), select Export
   Give the file a name (say) putty.reg and save it to your location for
   later use.
4. Close Registry Editor.

Done.