diff --git a/src/renderer/components/nav-bar/nav-bar-items/bs-version-item.component.tsx b/src/renderer/components/nav-bar/nav-bar-items/bs-version-item.component.tsx
index 2a9eb236..4b204c82 100644
--- a/src/renderer/components/nav-bar/nav-bar-items/bs-version-item.component.tsx
+++ b/src/renderer/components/nav-bar/nav-bar-items/bs-version-item.component.tsx
@@ -1,7 +1,7 @@
 import { BSVersion } from "shared/bs-version.interface";
 import { Link, useLocation } from "react-router-dom";
 import { useState } from "react";
-import { distinctUntilChanged, lastValueFrom, map, of, Subscription, switchMap } from "rxjs";
+import { distinctUntilChanged, lastValueFrom, map, of, Subscription, switchMap, take } from "rxjs";
 import { BSLauncherService, LaunchMods } from "renderer/services/bs-launcher.service";
 import { ConfigurationService } from "renderer/services/configuration.service";
 import { BSUninstallerService } from "renderer/services/bs-uninstaller.service";
@@ -55,7 +55,9 @@ export function BsVersionItem(props: { version: BSVersion }) {
         return props.version?.BSVersion === state?.BSVersion && props?.version.steam === state?.steam && props?.version.oculus === state?.oculus && props?.version.name === state?.name;
     };
 
-    const handleDoubleClick = () => {
+    const handleDoubleClick = async () => {
+        const downloadingVersion = await lastValueFrom(bsDownloader.downloadingVersion$.pipe(take(1)));
+        if(equal(downloadingVersion, props.version)){ return; }
         const launch$ = launcherService.launch({
             version: state,
             oculus: !!configService.get<boolean>(LaunchMods.OCULUS_MOD),
diff --git a/src/renderer/components/version-viewer/slides/launch/launch-slide.component.tsx b/src/renderer/components/version-viewer/slides/launch/launch-slide.component.tsx
index 5475687a..67d3100d 100644
--- a/src/renderer/components/version-viewer/slides/launch/launch-slide.component.tsx
+++ b/src/renderer/components/version-viewer/slides/launch/launch-slide.component.tsx
@@ -12,6 +12,8 @@ import { BsmImage } from "renderer/components/shared/bsm-image.component";
 import { useService } from "renderer/hooks/use-service.hook";
 import { BsStore } from "shared/models/bs-store.enum";
 import { lastValueFrom } from "rxjs";
+import { BsDownloaderService } from "renderer/services/bs-version-download/bs-downloader.service";
+import equal from "fast-deep-equal";
 
 type Props = { version: BSVersion };
 
@@ -20,12 +22,14 @@ export function LaunchSlide({ version }: Props) {
 
     const configService = useService(ConfigurationService);
     const bsLauncherService = useService(BSLauncherService);
+    const bsDownloader = useService(BsDownloaderService);
 
     const [oculusMode, setOculusMode] = useState(!!configService.get<boolean>(LaunchMods.OCULUS_MOD));
     const [desktopMode, setDesktopMode] = useState(!!configService.get<boolean>(LaunchMods.DESKTOP_MOD));
     const [debugMode, setDebugMode] = useState(!!configService.get<boolean>(LaunchMods.DEBUG_MOD));
     const [advancedLaunch, setAdvancedLaunch] = useState(false);
     const [additionalArgsString, setAdditionalArgsString] = useState<string>(configService.get<string>("additionnal-args") || "");
+    const versionDownloading = useObservable(bsDownloader.downloadingVersion$);
 
     const versionRunning = useObservable(bsLauncherService.versionRunning$);
 
@@ -96,7 +100,13 @@ export function LaunchSlide({ version }: Props) {
                 </motion.div>
             </div>
             <div className='grow flex justify-center items-center'>
-              <BsmButton onClick={launch} active={JSON.stringify(version) === JSON.stringify(versionRunning)} className='relative -translate-y-1/2 text-5xl text-gray-800 dark:text-gray-200 font-bold tracking-wide pt-1 pb-3 px-7 rounded-lg shadow-md italic shadow-black active:scale-90 transition-transform' text="misc.launch"/>
+                <BsmButton 
+                    onClick={launch} 
+                    active={JSON.stringify(version) === JSON.stringify(versionRunning)}
+                    className='relative -translate-y-1/2 text-5xl text-gray-800 dark:text-gray-200 font-bold tracking-wide pt-1 pb-3 px-7 rounded-lg shadow-md italic shadow-black active:scale-90 transition-transform' 
+                    text="misc.launch"
+                    disabled={equal(version, versionDownloading)}
+                />
             </div>
         </div>
     );