[client] Remove hardcoded autostart from Windows installers

The MSI (netbird.wxs) and NSIS (installer.nsis) installers each wrote a
machine-wide HKLM\...\Run entry for netbird-ui.exe, enabled by default.
The UI's "Launch NetBird UI at Login" setting only manages the per-user
HKCU\...\Run entry (via Wails), so it could never clear the installer's
HKLM entry -- the tray app kept launching at login even with the toggle
off.

Drop the installer-managed autostart so the UI toggle (HKCU) is the
single source of truth:

- netbird.wxs: remove the AUTOSTART property and the NetbirdAutoStart
  component/ref.
- installer.nsis: remove the "Startup Options" page, its checkbox state,
  and the HKLM write. Install now only clears the legacy HKLM entry
  (leaving HKCU intact so the user's toggle survives upgrades); uninstall
  clears both, including the Wails-written "netbird" value.

client/installer.nsis

@@ -79,8 +79,6 @@ ShowInstDetails Show
 
 !insertmacro MUI_PAGE_DIRECTORY
 
-Page custom AutostartPage AutostartPageLeave
-
 !insertmacro MUI_PAGE_INSTFILES
 
 !insertmacro MUI_PAGE_FINISH
@@ -97,40 +95,12 @@ UninstPage custom un.DeleteDataPage un.DeleteDataPageLeave
 
 !insertmacro MUI_LANGUAGE "English"
 
-; Variables for autostart option
-Var AutostartCheckbox
-Var AutostartEnabled
-
 ; Variables for uninstall data deletion option
 Var DeleteDataCheckbox
 Var DeleteDataEnabled
 
 ######################################################################
 
-; Function to create the autostart options page
-Function AutostartPage
-  !insertmacro MUI_HEADER_TEXT "Startup Options" "Configure how ${APP_NAME} launches with Windows."
-
-  nsDialogs::Create 1018
-  Pop $0
-
-  ${If} $0 == error
-    Abort
-  ${EndIf}
-
-  ${NSD_CreateCheckbox} 0 20u 100% 10u "Start ${APP_NAME} UI automatically when Windows starts"
-  Pop $AutostartCheckbox
-  ${NSD_Check} $AutostartCheckbox
-  StrCpy $AutostartEnabled "1"
-
-  nsDialogs::Show
-FunctionEnd
-
-; Function to handle leaving the autostart page
-Function AutostartPageLeave
-  ${NSD_GetState} $AutostartCheckbox $AutostartEnabled
-FunctionEnd
-
 ; Function to create the uninstall data deletion page
 Function un.DeleteDataPage
   !insertmacro MUI_HEADER_TEXT "Uninstall Options" "Choose whether to delete ${APP_NAME} data."
@@ -201,8 +171,6 @@ Pop $0
 
 Function .onInit
 StrCpy $INSTDIR "${INSTALL_DIR}"
-; Default autostart to enabled so silent installs (/S) match the interactive default
-StrCpy $AutostartEnabled "1"
 
 ; Pre-0.70.1 installers ran without SetRegView, so their uninstall keys live
 ; in the 32-bit view. Fall back to it so upgrades still find them.
@@ -260,17 +228,12 @@ WriteRegStr ${REG_ROOT} "${UNINSTALL_PATH}"  "Publisher" "${COMP_NAME}"
 
 WriteRegStr ${REG_ROOT} "${UI_REG_APP_PATH}" "" "$INSTDIR\${UI_APP_EXE}"
 
-; Create autostart registry entry based on checkbox
-DetailPrint "Autostart enabled: $AutostartEnabled"
-${If} $AutostartEnabled == "1"
-    WriteRegStr HKLM "${AUTOSTART_REG_KEY}" "${APP_NAME}" '"$INSTDIR\${UI_APP_EXE}.exe"'
-    DetailPrint "Added autostart registry entry: $INSTDIR\${UI_APP_EXE}.exe"
-${Else}
-    DeleteRegValue HKLM "${AUTOSTART_REG_KEY}" "${APP_NAME}"
-    ; Legacy: pre-HKLM installs wrote to HKCU; clean that up too.
-    DeleteRegValue HKCU "${AUTOSTART_REG_KEY}" "${APP_NAME}"
-    DetailPrint "Autostart not enabled by user"
-${EndIf}
+; Autostart is owned by the UI's per-user setting (HKCU\...\Run via Wails),
+; not the installer. Drop the machine-wide entry older installers wrote so the
+; toggle is the single source of truth. HKCU is left untouched -- it may hold
+; the user's own toggle state, which must survive upgrades.
+DetailPrint "Removing installer-managed autostart registry entry if present..."
+DeleteRegValue HKLM "${AUTOSTART_REG_KEY}" "${APP_NAME}"
 
 EnVar::SetHKLM
 EnVar::AddValueEx "path" "$INSTDIR"
@@ -336,11 +299,14 @@ ExecWait '"$INSTDIR\${MAIN_APP_EXE}" service uninstall'
 DetailPrint "Terminating Netbird UI process..."
 ExecWait `taskkill /im ${UI_APP_EXE}.exe /f`
 
-; Remove autostart registry entry
-DetailPrint "Removing autostart registry entry if exists..."
+; Remove autostart registry entries
+DetailPrint "Removing autostart registry entries if they exist..."
+; Legacy machine-wide entry written by older installers.
 DeleteRegValue HKLM "${AUTOSTART_REG_KEY}" "${APP_NAME}"
-; Legacy: pre-HKLM installs wrote to HKCU; clean that up too.
+; Per-user entry the UI toggle writes via Wails (value name is the lowercase
+; app-name slug). Uninstall removes the app, so drop it too.
 DeleteRegValue HKCU "${AUTOSTART_REG_KEY}" "${APP_NAME}"
+DeleteRegValue HKCU "${AUTOSTART_REG_KEY}" "netbird"
 
 ; Handle data deletion based on checkbox
 DetailPrint "Checking if user requested data deletion..."

client/netbird.wxs

@@ -13,9 +13,6 @@
 
 		<MajorUpgrade AllowSameVersionUpgrades='yes' DowngradeErrorMessage="A newer version of [ProductName] is already installed. Setup will now exit."/>
 
-		<!-- Autostart: enabled by default, disable with AUTOSTART=0 on the msiexec command line -->
-		<Property Id="AUTOSTART" Value="1" />
-
 		<StandardDirectory Id="ProgramFiles64Folder">
 			<Directory Id="NetbirdInstallDir" Name="Netbird">
 				<Component Id="NetbirdFiles" Guid="db3165de-cc6e-4922-8396-9d892950e23e" Bitness="always64">
@@ -71,20 +68,9 @@
 			</Component>
 		</StandardDirectory>
 
-		<StandardDirectory Id="CommonAppDataFolder">
-			<Directory Id="NetbirdAutoStartDir" Name="Netbird">
-				<Component Id="NetbirdAutoStart" Guid="b199eaca-b0dd-4032-af19-679cfad48eb3" Bitness="always64" Condition='AUTOSTART = "1"'>
-					<RegistryValue Root="HKLM" Key="Software\Microsoft\Windows\CurrentVersion\Run"
-						Name="Netbird" Value="&quot;[NetbirdInstallDir]netbird-ui.exe&quot;"
-						Type="string" KeyPath="yes" />
-				</Component>
-			</Directory>
-		</StandardDirectory>
-
 		<ComponentGroup Id="NetbirdFilesComponent">
 			<ComponentRef Id="NetbirdFiles" />
 			<ComponentRef Id="NetbirdAumidRegistry" />
-			<ComponentRef Id="NetbirdAutoStart" />
 		</ComponentGroup>
 
 		<util:CloseApplication Id="CloseNetBird" CloseMessage="no" Target="netbird.exe" RebootPrompt="no" />