diff --git a/assets/jsons/translations/de.json b/assets/jsons/translations/de.json
index dd7dced5..2d66696a 100644
--- a/assets/jsons/translations/de.json
+++ b/assets/jsons/translations/de.json
@@ -444,7 +444,8 @@
                     "PROTON_NOT_SET": "Proton-Ordner nicht festgelegt",
                     "PROTON_NOT_FOUND": "Proton-Binärdatei nicht gefunden",
                     "EXIT": "Abrupter Stop",
-                    "OCULUS_LIB_NOT_FOUND": "Oculus-Bibliothek nicht gefunden"
+                    "OCULUS_LIB_NOT_FOUND": "Oculus-Bibliothek nicht gefunden",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Original Oculus-Version nicht gefunden"
                 },
                 "msg": {
                     "UNKNOWN_ERROR": "Ein unbekannter Fehler ist aufgetreten.",
@@ -455,7 +456,8 @@
                     "EXIT": "Beat Saber stoppte abrupt. Versuche, die Dateien zu überprüfen.",
                     "OCULUS_LIB_NOT_FOUND": "Überprüfe, ob die Oculus-Anwendung korrekt installiert ist und dass die Bibliotheken in Oculus richtig definiert sind.",
                     "PROTON_NOT_SET": "Stellen Sie den Proton-Pfad in den Einstellungen ein.",
-                    "PROTON_NOT_FOUND": "Stellen Sie den Proton-Pfad in den Einstellungen ein."
+                    "PROTON_NOT_FOUND": "Stellen Sie den Proton-Pfad in den Einstellungen ein.",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Beat Saber muss vor dem Öffnen über die Oculus-App installiert werden."
                 },
                 "actions": {
                     "STEAM_NOT_RUNNING": "Starte Steam"
@@ -795,7 +797,7 @@
         "original-version-backup-oculus": {
             "title": "Achtung",
             "body": {
-                "must-be-installed-once": "Du musst Beat Saber mindestens einmal aus dem Oculus Store installiert haben, sonst könnte sich Beat Saber nach dem Start automatisch schließen.",
+                "must-be-installed-once": "Sie müssen Beat Saber aus dem Oculus Store auf diesem Gerät installiert haben, andernfalls wird Beat Saber nach dem Start automatisch geschlossen.",
                 "will-backup": "Um diese Version zu starten, wird der ursprüngliche Installationsordner von Beat Saber in deiner Oculus-Bibliothek umbenannt und beim Schließen von Beat Saber automatisch wiederhergestellt."
             },
             "not-remind-me": "Nicht mehr erinnern",
diff --git a/assets/jsons/translations/en.json b/assets/jsons/translations/en.json
index 9f54797e..304dd20d 100644
--- a/assets/jsons/translations/en.json
+++ b/assets/jsons/translations/en.json
@@ -444,7 +444,8 @@
                     "PROTON_NOT_SET": "Proton folder not set",
                     "PROTON_NOT_FOUND": "Proton binary not found",
                     "EXIT": "Abrupt stop",
-                    "OCULUS_LIB_NOT_FOUND": "Oculus library not found"
+                    "OCULUS_LIB_NOT_FOUND": "Oculus library not found",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Original Oculus version not found"
                 },
                 "msg": {
                     "UNKNOWN_ERROR": "An unknown error has occurred.",
@@ -455,7 +456,8 @@
                     "EXIT": "BeatSaber stopped abruptly, tries to check the files.",
                     "OCULUS_LIB_NOT_FOUND": "Check that the Oculus application is properly installed, and that the libraries are correctly defined in Oculus.",
                     "PROTON_NOT_SET": "Set the Proton path in settings.",
-                    "PROTON_NOT_FOUND": "Set the Proton path in settings."
+                    "PROTON_NOT_FOUND": "Set the Proton path in settings.",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Beat Saber must be installed from the Oculus app before opening."
                 },
                 "actions": {
                     "STEAM_NOT_RUNNING": "Launch Steam"
@@ -795,7 +797,7 @@
         "original-version-backup-oculus": {
             "title": "Warning",
             "body": {
-                "must-be-installed-once": "You must have installed Beat Saber at least once from the Oculus Store, otherwise Beat Saber might automatically close after launching.",
+                "must-be-installed-once": "You must have Beat Saber installed from the Oculus Store on this device, otherwise Beat Saber might automatically close after launching.",
                 "will-backup": "To launch this version, the original installation folder of Beat Saber located in your Oculus library will be renamed and will be automatically restored when Beat Saber is closed."
             },
             "not-remind-me": "Do not remind me",
diff --git a/assets/jsons/translations/es.json b/assets/jsons/translations/es.json
index 764cd4ca..d1f67abb 100644
--- a/assets/jsons/translations/es.json
+++ b/assets/jsons/translations/es.json
@@ -444,7 +444,8 @@
                     "PROTON_NOT_SET": "Carpeta de Proton no establecida",
                     "PROTON_NOT_FOUND": "Binario de Proton no encontrado",
                     "EXIT": "Parada abrupta",
-                    "OCULUS_LIB_NOT_FOUND": "Librería Oculus no encontrada"
+                    "OCULUS_LIB_NOT_FOUND": "Librería Oculus no encontrada",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "No se encontró la versión original de Oculus"
                 },
                 "msg": {
                     "UNKNOWN_ERROR": "Se ha producido un error desconocido.",
@@ -455,7 +456,8 @@
                     "EXIT": "Beat Saber se detuvo abruptamente, trata de verificar los archivos.",
                     "OCULUS_LIB_NOT_FOUND": "Verifica que la aplicación Oculus esté correctamente instalada y que las librerías estén bien definidas en Oculus.",
                     "PROTON_NOT_SET": "Establece la ruta de Proton en la configuración.",
-                    "PROTON_NOT_FOUND": "Establece la ruta de Proton en la configuración."
+                    "PROTON_NOT_FOUND": "Establece la ruta de Proton en la configuración.",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Beat Saber debe instalarse desde la aplicación de Oculus antes de abrirlo."
                 },
                 "actions": {
                     "STEAM_NOT_RUNNING": "Iniciar Steam"
@@ -795,7 +797,7 @@
         "original-version-backup-oculus": {
             "title": "Atención",
             "body": {
-                "must-be-installed-once": "Debes haber instalado Beat Saber al menos una vez desde la Oculus Store, de lo contrario, Beat Saber podría cerrarse automáticamente después de iniciar.",
+                "must-be-installed-once": "Debes tener Beat Saber instalado desde la tienda de Oculus en este dispositivo, de lo contrario, Beat Saber se cerrará automáticamente después de iniciarse.",
                 "will-backup": "Para lanzar esta versión, la carpeta de instalación original de Beat Saber ubicada en tu biblioteca de Oculus será renombrada y se restaurará automáticamente al cerrar Beat Saber."
             },
             "not-remind-me": "No volver a recordármelo",
diff --git a/assets/jsons/translations/fr.json b/assets/jsons/translations/fr.json
index e484cfba..a9ba810a 100644
--- a/assets/jsons/translations/fr.json
+++ b/assets/jsons/translations/fr.json
@@ -444,7 +444,8 @@
                     "PROTON_NOT_SET": "Dossier Proton non défini",
                     "PROTON_NOT_FOUND": "Binaire Proton non trouvé",
                     "EXIT": "Arrêt brutal",
-                    "OCULUS_LIB_NOT_FOUND": "Librairie Oculus introuvable"
+                    "OCULUS_LIB_NOT_FOUND": "Librairie Oculus introuvable",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Version originale Oculus non trouvée"
                 },
                 "msg": {
                     "UNKNOWN_ERROR": "Une erreur inconnue s'est produite.",
@@ -455,7 +456,8 @@
                     "EXIT": "Beat Saber s'est arrêté brusquement, essaye de vérifier les fichiers.",
                     "OCULUS_LIB_NOT_FOUND": "Vérifie que l'application Oculus est correctement installée, et que les librairies sont bien définies dans Oculus.",
                     "PROTON_NOT_SET": "Définissez le chemin de Proton dans les paramètres.",
-                    "PROTON_NOT_FOUND": "Définissez le chemin de Proton dans les paramètres."
+                    "PROTON_NOT_FOUND": "Définissez le chemin de Proton dans les paramètres.",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Beat Saber doit être installé depuis l'application Oculus avant de l'ouvrir."
                 },
                 "actions": {
                     "STEAM_NOT_RUNNING": "Lancer Steam"
@@ -777,7 +779,7 @@
         },
         "create-launch-shortcut": {
             "title": "Créer un raccourci",
-            "desc": "Créer un raccourci te permettra de démarrer Beat Saber avec les options choisi sans passé par BSManager.",
+            "desc": "Créer un raccourci te permettra de démarrer Beat Saber avec les options choisies sans passer par BSManager.",
             "launch-options": "Options de lancement",
             "advanced-launch": "Lancement avancé",
             "valid-btn": "Créer le raccourci"
@@ -796,7 +798,7 @@
         "original-version-backup-oculus": {
             "title": "Attention",
             "body": {
-                "must-be-installed-once": "Vous devez avoir installé au moins une fois Beat Saber depuis l'Oculus Store, sinon Beat Saber pourrait se fermer automatiquement après son lancement.",
+                "must-be-installed-once": "Vous devez avoir Beat Saber installé depuis le Oculus Store sur cet appareil, sinon Beat Saber se fermera automatiquement après le lancement.",
                 "will-backup": "Afin de lancer cette version, le dossier d'installation original de Beat Saber se trouvant dans votre bibliothèque Oculus va être renommé et sera automatiquement restauré à l'arrêt de Beat Saber."
             },
             "not-remind-me": "Ne plus me rappeler",
diff --git a/assets/jsons/translations/ja.json b/assets/jsons/translations/ja.json
index 49faa14c..c74d68fc 100644
--- a/assets/jsons/translations/ja.json
+++ b/assets/jsons/translations/ja.json
@@ -444,7 +444,8 @@
                     "PROTON_NOT_SET": "Protonフォルダーが設定されていません",
                     "PROTON_NOT_FOUND": "Protonのバイナリが見つかりません",
                     "EXIT": "緊急停止",
-                    "OCULUS_LIB_NOT_FOUND": "Oculusライブラリが見つかりません"
+                    "OCULUS_LIB_NOT_FOUND": "Oculusライブラリが見つかりません",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "オリジナルのOculusバージョンが見つかりませんでした"
                 },
                 "msg": {
                     "UNKNOWN_ERROR": "不明なエラーが発生しました。",
@@ -455,7 +456,8 @@
                     "EXIT": "BeatSaberが緊急停止したため、ファイルをチェックします。",
                     "OCULUS_LIB_NOT_FOUND": "Oculusアプリケーションが正しくインストールしていることと、Oculusライブラリが正しく定義されていることを確認してください。",
                     "PROTON_NOT_SET": "設定でProtonのパスを設定してください。",
-                    "PROTON_NOT_FOUND": "設定でProtonのパスを設定してください。"
+                    "PROTON_NOT_FOUND": "設定でProtonのパスを設定してください。",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Beat Saberは、開く前にOculusアプリからインストールする必要があります。"
                 },
                 "actions": {
                     "STEAM_NOT_RUNNING": "Steamを起動"
@@ -795,7 +797,7 @@
         "original-version-backup-oculus": {
             "title": "注意",
             "body": {
-                "must-be-installed-once": "少なくとも一度はOculus StoreからBeat Saberをインストールしている必要があります。そうしないとBeat Saberは起動後に自動的に終了する可能性があります。",
+                "must-be-installed-once": "このデバイスにOculusストアからBeat Saberをインストールしておく必要があります。そうしないと、Beat Saberは起動後に自動的に閉じます。",
                 "will-backup": "このバージョンを起動するために、OculusライブラリにあるBeat Saberの元のインストールフォルダは名前が変更され、Beat Saberの終了時に自動的に復元されます。"
             },
             "not-remind-me": "二度と表示しないでください",
diff --git a/assets/jsons/translations/ko.json b/assets/jsons/translations/ko.json
index 48fb6197..7940f85e 100644
--- a/assets/jsons/translations/ko.json
+++ b/assets/jsons/translations/ko.json
@@ -444,7 +444,8 @@
                     "PROTON_NOT_SET": "Proton 폴더가 설정되지 않음",
                     "PROTON_NOT_FOUND": "Proton 바이너리를 찾을 수 없음",
                     "EXIT": "긴급 중지",
-                    "OCULUS_LIB_NOT_FOUND": "Oculus 라이브러리를 찾을 수 없음"
+                    "OCULUS_LIB_NOT_FOUND": "Oculus 라이브러리를 찾을 수 없음",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "원본 Oculus 버전을 찾을 수 없습니다"
                 },
                 "msg": {
                     "UNKNOWN_ERROR": "알 수 없는 오류가 발생했습니다.",
@@ -455,7 +456,8 @@
                     "EXIT": "Beat Saber가 긴급 중지되었습니다. 파일을 점검합니다.",
                     "OCULUS_LIB_NOT_FOUND": "Oculus 앱이 올바르게 설치되었는지와 Oculus 라이브러리가 올바르게 정의되었는지 확인하세요.",
                     "PROTON_NOT_SET": "설정에서 Proton 경로를 설정하세요.",
-                    "PROTON_NOT_FOUND": "설정에서 Proton 경로를 설정하세요."
+                    "PROTON_NOT_FOUND": "설정에서 Proton 경로를 설정하세요.",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Beat Saber는 열기 전에 Oculus 앱에서 설치해야 합니다."
                 },
                 "actions": {
                     "STEAM_NOT_RUNNING": "Steam 실행"
@@ -795,7 +797,7 @@
         "original-version-backup-oculus": {
             "title": "주의",
             "body": {
-                "must-be-installed-once": "Oculus Store에서 적어도 한 번은 Beat Saber를 설치해야 합니다. 그렇지 않으면 Beat Saber가 실행 후 자동으로 종료될 수 있습니다.",
+                "must-be-installed-once": "이 장치에 Oculus 스토어에서 Beat Saber를 설치해야 합니다. 그렇지 않으면 Beat Saber가 실행 후 자동으로 종료됩니다..",
                 "will-backup": "이 버전을 실행하기 위해 Oculus 라이브러리에 있는 Beat Saber의 원래 설치 폴더의 이름이 변경되며, Beat Saber가 종료되면 자동으로 복원됩니다."
             },
             "not-remind-me": "다시 표시하지 않기",
diff --git a/assets/jsons/translations/ru.json b/assets/jsons/translations/ru.json
index e1536105..14b62d0b 100644
--- a/assets/jsons/translations/ru.json
+++ b/assets/jsons/translations/ru.json
@@ -444,7 +444,8 @@
                     "PROTON_NOT_SET": "Папка Proton не установлена",
                     "PROTON_NOT_FOUND": "Бинарный файл Proton не найде",
                     "EXIT": "Вылет",
-                    "OCULUS_LIB_NOT_FOUND": "Библиотека Oculus не найдена"
+                    "OCULUS_LIB_NOT_FOUND": "Библиотека Oculus не найдена",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Оригинальная версия Oculus не найдена"
                 },
                 "msg": {
                     "UNKNOWN_ERROR": "Возникла неизвестная ошибка.",
@@ -455,7 +456,8 @@
                     "EXIT": "Beat Saber вылетел, пытаемся проверить файлы.",
                     "OCULUS_LIB_NOT_FOUND": "Проверьте, правильно ли установлено приложение Oculus, и правильно ли определены библиотеки в Oculus.",
                     "PROTON_NOT_SET": "Установите путь к Proton в настройках.",
-                    "PROTON_NOT_FOUND": "Установите путь к Proton в настройках."
+                    "PROTON_NOT_FOUND": "Установите путь к Proton в настройках.",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "Beat Saber должен быть установлен из приложения Oculus перед открытием."
                 },
                 "actions": {
                     "STEAM_NOT_RUNNING": "Запустить Steam"
@@ -795,7 +797,7 @@
         "original-version-backup-oculus": {
             "title": "Внимание",
             "body": {
-                "must-be-installed-once": "Вы должны были установить Beat Saber хотя бы один раз из Oculus Store, иначе Beat Saber может автоматически закрыться после запуска.",
+                "must-be-installed-once": "Вы должны установить Beat Saber из магазина Oculus на этом устройстве, в противном случае Beat Saber автоматически закроется после запуска.",
                 "will-backup": "Для запуска этой версии исходная папка установки Beat Saber, находящаяся в вашей библиотеке Oculus, будет переименована и автоматически восстановлена при выходе из Beat Saber."
             },
             "not-remind-me": "Больше не напоминать",
diff --git a/assets/jsons/translations/zh-tw.json b/assets/jsons/translations/zh-tw.json
index 39a81e93..1ae45a3f 100644
--- a/assets/jsons/translations/zh-tw.json
+++ b/assets/jsons/translations/zh-tw.json
@@ -444,7 +444,8 @@
                     "PROTON_NOT_SET": "Proton資料夾未設置",
                     "PROTON_NOT_FOUND": "找不到Proton二進位檔",
                     "EXIT": "突然停止",
-                    "OCULUS_LIB_NOT_FOUND": "未找到 Oculus 庫"
+                    "OCULUS_LIB_NOT_FOUND": "未找到 Oculus 庫",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "找不到原始Oculus版本"
                 },
                 "msg": {
                     "UNKNOWN_ERROR": "發生未知錯誤。",
@@ -455,7 +456,8 @@
                     "EXIT": "BeatSaber 突然停止，請檢查文件。",
                     "OCULUS_LIB_NOT_FOUND": "檢查 Oculus 應用是否正確安裝，以及庫是否在 Oculus 中正確定義。",
                     "PROTON_NOT_SET": "在設定中設置Proton路徑。",
-                    "PROTON_NOT_FOUND": "在設定中設置Proton路徑。"
+                    "PROTON_NOT_FOUND": "在設定中設置Proton路徑。",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "在打開之前，必須從Oculus應用程式安裝Beat Saber。"
                 },
                 "actions": {
                     "STEAM_NOT_RUNNING": "啟動 Steam"
@@ -795,7 +797,7 @@
         "original-version-backup-oculus": {
             "title": "警告",
             "body": {
-                "must-be-installed-once": "你必須至少從 Oculus 商店安裝過一次 BeatSaber，否則 BeatSaber 可能會在啟動後自動關閉。",
+                "must-be-installed-once": "您必須在此設備上從Oculus商店安裝Beat Saber，否則Beat Saber將在啟動後自動關閉。",
                 "will-backup": "為了啟動這個版本，位於您的Oculus庫中的Beat Saber的原始安裝文件夾將被重新命名，並且在Beat Saber關閉時會自動恢復。"
             },
             "not-remind-me": "不再提醒我",
diff --git a/assets/jsons/translations/zh.json b/assets/jsons/translations/zh.json
index 8a144419..96870dad 100644
--- a/assets/jsons/translations/zh.json
+++ b/assets/jsons/translations/zh.json
@@ -444,7 +444,8 @@
                     "PROTON_NOT_SET": "Proton文件夹未设置",
                     "PROTON_NOT_FOUND": "未找到Proton二进制文件",
                     "EXIT": "突然停止",
-                    "OCULUS_LIB_NOT_FOUND": "未找到 Oculus 库"
+                    "OCULUS_LIB_NOT_FOUND": "未找到 Oculus 库",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "未找到原始Oculus版本"
                 },
                 "msg": {
                     "UNKNOWN_ERROR": "发生未知错误。",
@@ -455,7 +456,8 @@
                     "EXIT": "BeatSaber 突然停止，请检查文件。",
                     "OCULUS_LIB_NOT_FOUND": "检查 Oculus 应用是否正确安装，以及库是否在 Oculus 中正确定义。",
                     "PROTON_NOT_SET": "在设置中设置Proton路径。",
-                    "PROTON_NOT_FOUND": "在设置中设置Proton路径。"
+                    "PROTON_NOT_FOUND": "在设置中设置Proton路径。",
+                    "ORIGINAL_OCULUS_NOT_INSTALLED": "在打开之前，必须从Oculus应用程序安装Beat Saber。"
                 },
                 "actions": {
                     "STEAM_NOT_RUNNING": "启动 Steam"
@@ -795,7 +797,7 @@
         "original-version-backup-oculus": {
             "title": "警告",
             "body": {
-                "must-be-installed-once": "你必须至少从 Oculus 商店安装过一次 BeatSaber，否则 BeatSaber 可能会在启动后自动关闭。",
+                "must-be-installed-once": "您必须在此设备上从Oculus商店安装Beat Saber，否则Beat Saber将在启动后自动关闭。",
                 "will-backup": "为了启动这个版本，位于您的Oculus库中的Beat Saber的原始安装文件夹将被重命名，并且在Beat Saber关闭时会自动恢复。"
             },
             "not-remind-me": "不再提醒我",
diff --git a/src/main/services/bs-launcher/oculus-launcher.service.ts b/src/main/services/bs-launcher/oculus-launcher.service.ts
index 89678809..8de12479 100644
--- a/src/main/services/bs-launcher/oculus-launcher.service.ts
+++ b/src/main/services/bs-launcher/oculus-launcher.service.ts
@@ -127,6 +127,11 @@ export class OculusLauncherService extends AbstractLauncherService implements St
 
         const prepareDowngradedVersion: () => Promise<string> = async () => {
 
+            const originalVersionPath = await prepareOriginalVersion().catch(() => null);
+            if (!originalVersionPath) {
+                throw CustomError.fromError(new Error("Original Oculus Beat Saber not installed"), BSLaunchError.ORIGINAL_OCULUS_NOT_INSTALLED);
+            }
+
             const oculusLib = await lastValueFrom(this.oculusLib$.pipe(take(1), timeout(sToMs(30)), catchError(() => of(null))));
 
             if(!oculusLib){
diff --git a/src/shared/models/bs-launch/launch-event.model.ts b/src/shared/models/bs-launch/launch-event.model.ts
index 61eb80a4..8ee1a454 100644
--- a/src/shared/models/bs-launch/launch-event.model.ts
+++ b/src/shared/models/bs-launch/launch-event.model.ts
@@ -17,6 +17,7 @@ export enum BSLaunchError{
     PROTON_NOT_SET = "PROTON_NOT_SET",
     PROTON_NOT_FOUND = "PROTON_NOT_FOUND",
     UNKNOWN_ERROR = "UNKNOWN_ERROR",
+    ORIGINAL_OCULUS_NOT_INSTALLED = "ORIGINAL_OCULUS_NOT_INSTALLED"
 }
 
 export enum BSLaunchEvent{