diff --git a/package.json b/package.json
index 1460766..7c36795 100644
--- a/package.json
+++ b/package.json
@@ -245,12 +245,12 @@
       "oneClick": false,
       "allowToChangeInstallationDirectory": true,
       "include": "scripts/installer.nsh",
-      "perMachine": true
+      "perMachine": false
     },
     "msiWrapped": {
       "upgradeCode": "{735812DB-E33B-57A0-8FBC-5FC3155925AA}",
-      "perMachine": true,
-      "impersonate": false,
+      "perMachine": false,
+      "impersonate": true,
       "wrappedInstallerArgs": "/S"
     }
   }
diff --git a/packaging/windows/farmcontrol.nsi b/packaging/windows/farmcontrol.nsi
index f376a24..f3e27fc 100644
--- a/packaging/windows/farmcontrol.nsi
+++ b/packaging/windows/farmcontrol.nsi
@@ -20,9 +20,9 @@
 
 Name "Farm Control"
 OutFile "${OUTFILE}"
-InstallDir "$PROGRAMFILES64\Farm Control"
-InstallDirRegKey HKLM "Software\Tom Butcher\Farm Control" "InstallDir"
-RequestExecutionLevel admin
+InstallDir "$LOCALAPPDATA\Programs\Farm Control"
+InstallDirRegKey HKCU "Software\Tom Butcher\Farm Control" "InstallDir"
+RequestExecutionLevel user
 
 !define MUI_ABORTWARNING
 
@@ -58,23 +58,21 @@ Section "Farm Control" SecMain
 
   !insertmacro customInstall
 
-  WriteRegStr HKLM "Software\Tom Butcher\Farm Control" "InstallDir" $INSTDIR
-  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
+  WriteRegStr HKCU "Software\Tom Butcher\Farm Control" "InstallDir" $INSTDIR
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
     "DisplayName" "Farm Control"
-  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
     "DisplayVersion" "${VERSION}"
-  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
     "Publisher" "Tom Butcher"
-  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
+  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
     "UninstallString" "$INSTDIR\Uninstall.exe"
-  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
+  WriteRegDWORD HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
     "NoModify" 1
-  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
+  WriteRegDWORD HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" \
     "NoRepair" 1
 
   WriteUninstaller "$INSTDIR\Uninstall.exe"
-
-  !insertmacro grantUsersInstallAccess
 SectionEnd
 
 Section "Uninstall"
@@ -83,6 +81,6 @@ Section "Uninstall"
   Delete "$INSTDIR\Uninstall.exe"
   RMDir /r "$INSTDIR"
 
-  DeleteRegKey HKLM "Software\Tom Butcher\Farm Control"
-  DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control"
+  DeleteRegKey HKCU "Software\Tom Butcher\Farm Control"
+  DeleteRegKey HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control"
 SectionEnd
diff --git a/packaging/windows/installer.nsh b/packaging/windows/installer.nsh
index 0e5fb91..e3b6fa3 100644
--- a/packaging/windows/installer.nsh
+++ b/packaging/windows/installer.nsh
@@ -5,16 +5,30 @@
 
 !macro uninstallPreviousFarmControl
   ClearErrors
-  ReadRegStr $R0 HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" "UninstallString"
+  ReadRegStr $R0 HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" "UninstallString"
   StrCmp $R0 "" check_install_dir run_uninstall
 
   check_install_dir:
+    ReadRegStr $R0 HKCU "Software\Tom Butcher\Farm Control" "InstallDir"
+    StrCmp $R0 "" check_legacy_uninstall
+    StrCpy $R0 "$R0\Uninstall.exe"
+    Goto run_uninstall
+
+  check_legacy_uninstall:
+    ReadRegStr $R0 HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control" "UninstallString"
+    StrCmp $R0 "" check_legacy_install_dir run_uninstall
+
+  check_legacy_install_dir:
     ReadRegStr $R0 HKLM "Software\Tom Butcher\Farm Control" "InstallDir"
     StrCmp $R0 "" check_default_dir
     StrCpy $R0 "$R0\Uninstall.exe"
     Goto run_uninstall
 
   check_default_dir:
+    StrCpy $R0 "$LOCALAPPDATA\Programs\Farm Control\Uninstall.exe"
+    IfFileExists $R0 run_uninstall check_legacy_default_dir
+
+  check_legacy_default_dir:
     StrCpy $R0 "$PROGRAMFILES64\Farm Control\Uninstall.exe"
     IfFileExists $R0 run_uninstall done_uninstall
 
@@ -52,40 +66,38 @@
 !macroend
 
 !macro createDesktopShortcut
-  SetShellVarContext all
+  SetShellVarContext current
   CreateShortCut "$DESKTOP\Farm Control.lnk" "$INSTDIR\bin\launcher.exe" "" "$INSTDIR\bin\launcher.exe" 0 SW_SHOWNORMAL "" "Farm Control"
   !insertmacro fixShortcutWorkingDir "$DESKTOP\Farm Control.lnk" "$INSTDIR\bin"
 !macroend
 
 !macro createStartMenuShortcut
-  SetShellVarContext all
+  SetShellVarContext current
   CreateDirectory "$SMPROGRAMS\Farm Control"
   CreateShortCut "$SMPROGRAMS\Farm Control\Farm Control.lnk" "$INSTDIR\bin\launcher.exe" "" "$INSTDIR\bin\launcher.exe" 0 SW_SHOWNORMAL "" "Farm Control"
   !insertmacro fixShortcutWorkingDir "$SMPROGRAMS\Farm Control\Farm Control.lnk" "$INSTDIR\bin"
 !macroend
 
 !macro removeDesktopShortcut
-  SetShellVarContext all
+  SetShellVarContext current
   Delete "$DESKTOP\Farm Control.lnk"
 !macroend
 
 !macro removeStartMenuShortcut
-  SetShellVarContext all
+  SetShellVarContext current
   Delete "$SMPROGRAMS\Farm Control\Farm Control.lnk"
   RMDir "$SMPROGRAMS\Farm Control"
 !macroend
 
-!include "grant-users-access.nsh"
-
 !macro customInstall
   DetailPrint "Register farmcontrol URI Handler"
-  DeleteRegKey HKCR "farmcontrol"
-  WriteRegStr HKCR "farmcontrol" "" "URL:farmcontrol"
-  WriteRegStr HKCR "farmcontrol" "URL Protocol" ""
-  WriteRegStr HKCR "farmcontrol\DefaultIcon" "" "$INSTDIR\bin\launcher.exe"
-  WriteRegStr HKCR "farmcontrol\shell" "" ""
-  WriteRegStr HKCR "farmcontrol\shell\Open" "" ""
-  WriteRegStr HKCR "farmcontrol\shell\Open\command" "" '"$INSTDIR\bin\bun.exe" "$INSTDIR\bin\deeplink.js" "%1"'
+  DeleteRegKey HKCU "Software\Classes\farmcontrol"
+  WriteRegStr HKCU "Software\Classes\farmcontrol" "" "URL:farmcontrol"
+  WriteRegStr HKCU "Software\Classes\farmcontrol" "URL Protocol" ""
+  WriteRegStr HKCU "Software\Classes\farmcontrol\DefaultIcon" "" "$INSTDIR\bin\launcher.exe"
+  WriteRegStr HKCU "Software\Classes\farmcontrol\shell" "" ""
+  WriteRegStr HKCU "Software\Classes\farmcontrol\shell\Open" "" ""
+  WriteRegStr HKCU "Software\Classes\farmcontrol\shell\Open\command" "" '"$INSTDIR\bin\bun.exe" "$INSTDIR\bin\deeplink.js" "%1"'
 
   DetailPrint "Creating shortcuts"
   !insertmacro createDesktopShortcut
@@ -95,5 +107,5 @@
 !macro customUnInstall
   !insertmacro removeDesktopShortcut
   !insertmacro removeStartMenuShortcut
-  DeleteRegKey HKCR "farmcontrol"
+  DeleteRegKey HKCU "Software\Classes\farmcontrol"
 !macroend
diff --git a/packaging/windows/msi-wrapped.wxs b/packaging/windows/msi-wrapped.wxs
index ff9298b..6dd3a51 100644
--- a/packaging/windows/msi-wrapped.wxs
+++ b/packaging/windows/msi-wrapped.wxs
@@ -10,7 +10,7 @@
     <Package
       InstallerVersion="500"
       Compressed="yes"
-      InstallScope="perMachine"
+      InstallScope="perUser"
       Platform="x64" />
 
     <Condition Message="Windows 7 and above is required"><![CDATA[Installed OR VersionNT >= 601]]></Condition>
@@ -28,7 +28,7 @@
   <Property Id="PREVIOUS_UNINSTALL_CMD">
     <RegistrySearch
       Id="PreviousUninstallCmdSearch"
-      Root="HKLM"
+      Root="HKCU"
       Key="Software\Microsoft\Windows\CurrentVersion\Uninstall\Farm Control"
       Name="UninstallString"
       Type="raw" />
@@ -37,7 +37,7 @@
   <Property Id="PREVIOUS_INSTALL_DIR">
     <RegistrySearch
       Id="PreviousInstallDirSearch"
-      Root="HKLM"
+      Root="HKCU"
       Key="Software\Tom Butcher\Farm Control"
       Name="InstallDir"
       Type="directory" />
@@ -49,24 +49,24 @@
       Id="KillFarmControl"
       BinaryKey="WixCA"
       DllEntry="WixQuietExec"
-      Execute="deferred"
-      Impersonate="no"
+      Execute="immediate"
+      Impersonate="yes"
       Return="ignore" />
 
     <CustomAction
       Id="UninstallPrevious"
       BinaryKey="WixCA"
       DllEntry="WixQuietExec"
-      Execute="deferred"
-      Impersonate="no"
+      Execute="immediate"
+      Impersonate="yes"
       Return="ignore" />
 
     <CustomAction
       Id="RunInstaller"
       BinaryKey="WrappedExe"
       ExeCommand="/S"
-      Execute="deferred"
-      Impersonate="no"
+      Execute="immediate"
+      Impersonate="yes"
       Return="check" />
 
     <Directory Id="TARGETDIR" Name="SourceDir">
diff --git a/scripts/build-windows-nsis.ps1 b/scripts/build-windows-nsis.ps1
index 7f5270d..fdcf0ec 100644
--- a/scripts/build-windows-nsis.ps1
+++ b/scripts/build-windows-nsis.ps1
@@ -48,7 +48,6 @@ function Get-DirectoryBytes {
 $rootDir = Split-Path -Parent $PSScriptRoot
 $nsiPath = Join-Path $rootDir "packaging/windows/farmcontrol.nsi"
 $installerInclude = Join-Path $rootDir "packaging/windows/installer.nsh"
-$grantUsersAccessInclude = Join-Path $rootDir "packaging/windows/grant-users-access.nsh"
 $workDir = Join-Path $env:TEMP "farmcontrol-nsis"
 $localInstallerName = "farmcontrol-installer.exe"
 
@@ -81,7 +80,6 @@ if (-not (Test-Path $requiredDeeplinkScript)) {
 
 Copy-Item -LiteralPath $nsiPath -Destination (Join-Path $workDir "farmcontrol.nsi")
 Copy-Item -LiteralPath $installerInclude -Destination (Join-Path $workDir "installer.nsh")
-Copy-Item -LiteralPath $grantUsersAccessInclude -Destination (Join-Path $workDir "grant-users-access.nsh")
 
 $iconPath = Join-Path $rootDir "assets\installer.ico"
 if (Test-Path $iconPath) {
diff --git a/scripts/installer.nsh b/scripts/installer.nsh
index 7d58b96..d999278 100644
--- a/scripts/installer.nsh
+++ b/scripts/installer.nsh
@@ -1,14 +1,10 @@
-!include "packaging\windows\grant-users-access.nsh"
-
-!macro customInstall
-  !insertmacro grantUsersInstallAccess
-
+!macro customInstall
   DetailPrint "Register farmcontrol URI Handler"
-  DeleteRegKey HKCR "farmcontrol"
-  WriteRegStr HKCR "farmcontrol" "" "URL:farmcontrol"
-  WriteRegStr HKCR "farmcontrol" "URL Protocol" ""
-  WriteRegStr HKCR "farmcontrol\DefaultIcon" "" "$INSTDIR\${APP_EXECUTABLE_FILENAME}"
-  WriteRegStr HKCR "farmcontrol\shell" "" ""
-  WriteRegStr HKCR "farmcontrol\shell\Open" "" ""
-  WriteRegStr HKCR "farmcontrol\shell\Open\command" "" "$INSTDIR\${APP_EXECUTABLE_FILENAME} %1"
-!macroend
\ No newline at end of file
+  DeleteRegKey HKCU "Software\Classes\farmcontrol"
+  WriteRegStr HKCU "Software\Classes\farmcontrol" "" "URL:farmcontrol"
+  WriteRegStr HKCU "Software\Classes\farmcontrol" "URL Protocol" ""
+  WriteRegStr HKCU "Software\Classes\farmcontrol\DefaultIcon" "" "$INSTDIR\${APP_EXECUTABLE_FILENAME}"
+  WriteRegStr HKCU "Software\Classes\farmcontrol\shell" "" ""
+  WriteRegStr HKCU "Software\Classes\farmcontrol\shell\Open" "" ""
+  WriteRegStr HKCU "Software\Classes\farmcontrol\shell\Open\command" "" "$INSTDIR\${APP_EXECUTABLE_FILENAME} %1"
+!macroend
diff --git a/src/desktop/updater-runner.js b/src/desktop/updater-runner.js
index 567ee2f..22ef8b6 100644
--- a/src/desktop/updater-runner.js
+++ b/src/desktop/updater-runner.js
@@ -5,10 +5,13 @@ import path from 'node:path'
 import process from 'node:process'
 
 const MAC_APP_NAME = 'Farm Control.app'
-const WINDOWS_INSTALL_DIR_KEY =
+const WINDOWS_INSTALL_DIR_KEYS = [
+  'HKCU\\Software\\Tom Butcher\\Farm Control',
   'HKLM\\Software\\Tom Butcher\\Farm Control'
+]
 const WINDOWS_DEFAULT_LAUNCHER = path.join(
-  process.env.ProgramFiles || 'C:\\Program Files',
+  process.env.LOCALAPPDATA || path.join(os.homedir(), 'AppData', 'Local'),
+  'Programs',
   'Farm Control',
   'bin',
   'launcher.exe'
@@ -39,16 +42,23 @@ const findMacAppBundle = (startPath) => {
 }
 
 const readWindowsInstallDirFromRegistry = () => {
-  try {
-    const output = execSync(
-      `reg query ${quoteBatchArg(WINDOWS_INSTALL_DIR_KEY)} /v InstallDir`,
-      { encoding: 'utf8', windowsHide: true }
-    )
-    const match = output.match(/InstallDir\s+REG_\w+\s+(.+)/i)
-    return match?.[1]?.trim() || null
-  } catch {
-    return null
+  for (const registryKey of WINDOWS_INSTALL_DIR_KEYS) {
+    try {
+      const output = execSync(
+        `reg query ${quoteBatchArg(registryKey)} /v InstallDir`,
+        { encoding: 'utf8', windowsHide: true }
+      )
+      const match = output.match(/InstallDir\s+REG_\w+\s+(.+)/i)
+      const installDir = match?.[1]?.trim()
+      if (installDir) {
+        return installDir
+      }
+    } catch {
+      // Try the next registry key.
+    }
   }
+
+  return null
 }
 
 export const resolveAppLaunchPath = () => {