diff --git a/install.ps1 b/install.ps1
index a8c52a7b4b..62d55989ea 100644
--- a/install.ps1
+++ b/install.ps1
@@ -2615,11 +2615,27 @@ exit 0
     # Ask once (interactive installs only) whether the launcher should open
     # the browser after the server is up. Skipped when --no-browser/--browser
     # was passed or input is redirected; then an existing choice is kept.
+    # Enter keeps the choice baked into the existing launcher so a reinstall
+    # that accepts the defaults never flips a saved no-browser preference.
     $_browserPromptOk = [Environment]::UserInteractive -and (-not [Console]::IsInputRedirected)
     if (-not $OpenBrowserPref -and $_browserPromptOk) {
+        $_existingPref = ""
+        $_promptLauncher = if ($StudioDataDir) { Join-Path $StudioDataDir "launch-studio.ps1" } else { $null }
+        if ($_promptLauncher -and (Test-Path -LiteralPath $_promptLauncher)) {
+            try {
+                $_prevText = [System.IO.File]::ReadAllText($_promptLauncher)
+                if ($_prevText -match "(?m)^\`$openBrowserDefault = '([01])'") {
+                    $_existingPref = $Matches[1]
+                }
+            } catch {}
+        }
+        $_browserHint = if ($_existingPref -eq '0') { '[y/N]' } else { '[Y/n]' }
         Write-Host ""
-        $_browserReply = Read-Host "  Open Unsloth Studio in your default browser after launch? [Y/n]"
-        $OpenBrowserPref = if ($_browserReply -match '^[Nn]') { '0' } else { '1' }
+        $_browserReply = Read-Host "  Open Unsloth Studio in your default browser after launch? $_browserHint"
+        $OpenBrowserPref = if ($_browserReply -match '^[Nn]') { '0' }
+            elseif ($_browserReply -match '^[Yy]') { '1' }
+            elseif ($_existingPref) { $_existingPref }
+            else { '1' }
     }
 
     # New-StudioShortcuts gates the .lnk shortcuts on env-mode internally.
diff --git a/install.sh b/install.sh
index 38625c43c5..10bc6b8863 100755
--- a/install.sh
+++ b/install.sh
@@ -3198,13 +3198,26 @@ if [ "$TAURI_MODE" != true ]; then
     # Ask once (interactive installs only) whether the launcher should open
     # the browser after the server is up. Skipped when --no-browser/--browser
     # was passed or no TTY; then an existing choice is kept, defaulting to on.
+    # Enter keeps the choice persisted in studio.conf so a reinstall that
+    # accepts the defaults never flips a saved no-browser preference.
     if [ -z "$_STUDIO_OPEN_BROWSER" ] && [ -t 1 ] && [ -r /dev/tty ]; then
+        _existing_open_browser=""
+        if [ -f "$DATA_DIR/studio.conf" ]; then
+            _existing_open_browser=$(sed -n "s/^STUDIO_OPEN_BROWSER='\([01]\)'\$/\1/p" \
+                "$DATA_DIR/studio.conf" 2>/dev/null | head -n 1)
+        fi
+        if [ "$_existing_open_browser" = "0" ]; then
+            _browser_hint="[y/N]"
+        else
+            _browser_hint="[Y/n]"
+        fi
         echo ""
-        printf "  Open Unsloth Studio in your default browser after launch? [Y/n] "
-        read -r _browser_reply </dev/tty || _browser_reply="y"
+        printf "  Open Unsloth Studio in your default browser after launch? %s " "$_browser_hint"
+        read -r _browser_reply </dev/tty || _browser_reply=""
         case "$_browser_reply" in
             [nN]*) _STUDIO_OPEN_BROWSER=0 ;;
-            *) _STUDIO_OPEN_BROWSER=1 ;;
+            [yY]*) _STUDIO_OPEN_BROWSER=1 ;;
+            *) _STUDIO_OPEN_BROWSER="${_existing_open_browser:-1}" ;;
         esac
     fi
     create_studio_shortcuts "$VENV_ABS_BIN/unsloth" "$OS"
diff --git a/tests/sh/test_launcher_no_browser.sh b/tests/sh/test_launcher_no_browser.sh
index 4ea4875671..073168d0d0 100755
--- a/tests/sh/test_launcher_no_browser.sh
+++ b/tests/sh/test_launcher_no_browser.sh
@@ -81,6 +81,10 @@ assert_contains \
 assert_contains \
     "install.sh: interactive prompt asks about browser auto-open" \
     "$_installer" "Open Unsloth Studio in your default browser after launch?"
+# A reinstall that accepts the prompt default must keep the saved choice.
+assert_contains \
+    "install.sh: prompt Enter keeps the persisted preference" \
+    "$_installer" '*) _STUDIO_OPEN_BROWSER="${_existing_open_browser:-1}"'
 
 echo ""
 echo "=== install.sh _open_browser gating (functional) ==="
@@ -158,6 +162,9 @@ assert_file_contains \
 assert_file_contains \
     "install.ps1: interactive prompt asks about browser auto-open" \
     "$INSTALL_PS1" "Open Unsloth Studio in your default browser after launch?"
+assert_file_contains \
+    "install.ps1: prompt Enter keeps the baked preference" \
+    "$INSTALL_PS1" 'elseif ($_existingPref) { $_existingPref }'
 # All launcher URL opens must route through the gated helper.
 _ps1_direct_open=$(grep -cF 'Start-Process "http://localhost:' "$INSTALL_PS1" || true)
 if [ "$_ps1_direct_open" -eq 0 ]; then