Roblox crashes or does not launch
If you're encountering Roblox crashes, or Roblox just doesn't show when it should be launching, it's very likely not a Bloxstrap problem, but is a problem with Roblox itself. Nonetheless, this page should help detail potential solutions.
At the very least, if you're using Bloxstrap, you should first check to see if it's possibly being caused by that. You can do that by temporarily switching back to the normal Roblox bootstrapper. If your problem is only happening with Bloxstrap and is not addressed here, then please open an issue. Otherwise, it's very likely a problem with Roblox itself.
Keep the following in mind: This page is not a definitive guide, but it merely outlines everything that I know. From what I have personally seen, these were the most common solutions that worked. It's possible that these solutions may not apply to you, in which case, I can't really help. Though, there's several reasons for why this could be happening.
There are several variants of this issue that you can encounter when launching Roblox:
- (a) The RobloxPlayerBeta process exits instantly after trying to launch it
- (b) The RobloxPlayerBeta process stays running, but it just hangs around in the background and doesn't do anything
- (c) Roblox opens, but crashes instantly after opening
- (d) Roblox opens fine, but a crash happens sometime later, and this happens consistently
- (e) An error dialog saying 'Unapproved third-party applications or extensions detected' appears
Each one of these have their unique traits (identified by the letters), and so each potential fix will be labelled accordingly.
Identify which type of issue you're having, then navigate to a topic which describes your issue:
- (a) (b) (d) (e) Software running on your computer is conflicting with Roblox (→)
- (c) Some files stored in your cache may be problematic (→)
- (a) (b) You're using an Insider Preview version of Windows (→)
- (d) [Bloxstrap only] Your configured framerate limit is causing issues (→)
- (c) [Bloxstrap only] You have a custom font configured (→)
There's a few potential links to this:
-
(a) (b) - If Roblox just generally isn't opening, then it's likely that Hyperion is detecting what it thinks is a cheat. Known cases include:
- GPU tweaking tools, specifically RTSS or MSI Afterburner - this can be avoided by making sure they are not active when launching Roblox. They can be reopened after Roblox launches.
- Bad input devices/drivers - make sure that you have no other input devices (game controllers, steering wheels, etc) connected.
-
(d) - If Roblox is crashing around one minute after launching, then it's likely that Hyperion is suspicious of something, and self-crashes after some period of time. This only happens if:
- The application keeps a process handle open for the Roblox game client for at least one minute.
- The application is not code signed.
Known cases of this include:
-
(e) - If you're getting this error dialog, something running in the background is trying to mess with Roblox. The most common case of this is games that use Easy AntiCheat running in the background, like Fortnite.
It's a good idea to briefly examine any utility programs you have installed that are running in the background. If you find any, make sure they're not running and see if anything changes.
There may be some files in your cache that Roblox doesn't like, as a lot of people have noticed that clearing the Windows thumbnail cache turns out to fix any Hyperion related crashes. You can do this by opening Windows Disk Clean-up (cleanmgr.exe), choosing your Windows drive, and opting to clean up thumbnails.
The Roblox game client is very well known for not working well with Insider Preview builds of Windows. If you're opting to use one and Roblox isn't working for you, this could very likely be the reason as to why.
To possibly resolve your issue, you would either have to wait and see if a future Insider Preview version releases and happens to have the issue fixed, or downgrade to either an older version, or just stick to using a stock version of Windows.
If Roblox is crashing when you're teleporting between games/servers, it could be because of the framerate limit flag. This is an incredibly rare issue, but it can happen. If you're encountering this, try setting your framerate limit to zero to effectively revert it to defaults. You'll unfortunately just have to stick with not uncapping your FPS if it happens to be the case.
If you've opted to use a custom font, try removing it. Roblox won't be compatible with all font files, and in some cases an incompatible font can even stop it from launching entirely. If you're running into this problem, your luck might be better using .otf fonts instead of .ttf fonts.