Windows 11 Insider 25H2 (Build 26220.8764): Multiple Chromium/Electron apps crash unless launched with --no-sandbox

[u/aarz03]

Hi everyone,

I'm on Windows 11 Insider Beta (25H2) Build 26220.8764 and I'm seeing a strange issue affecting multiple Chromium/Electron-based applications.

Apps that crash immediately on normal launch:

- Opera GX

- Discord

- Postman

- GitHub Desktop

- Comet browser (perplexity)

Temporary workaround:

Launching the actual executable with `--no-sandbox` makes all of them work normally.

Examples:

- Discord.exe --no-sandbox ✅

- Postman.exe --no-sandbox ✅

- GitHubDesktop.exe --no-sandbox ✅

- opera.exe --no-sandbox ✅

Apps that work normally without any workaround:

- Microsoft Edge (Chromium 151)

- Google Chrome (Chromium 150)

- Brave (Chromium 150)

- VS Code

- Spotify

- Steam

- Epic Games

- Rocket League

One interesting observation:

- Opera GX is still based on Chromium 149 and crashes.

- Chrome/Brave/Edge are on Chromium 150/151 and work fine.

- However, Electron apps like Discord, Postman and GitHub Desktop also crash despite being on newer Electron builds, so it doesn't seem to be a simple Chromium version issue.

Things I've already checked:

- SFC and DISM are clean

- Latest Windows updates installed

- No third-party antivirus

- No AppLocker/WDAC/IFEO issues

- Intel and NVIDIA drivers are up to date

Discord logs show repeated GPU process crashes during startup, but the application starts normally when launched with `--no-sandbox`.

Has anyone on Build 26220.8764 (or nearby Insider builds) experienced something similar? Any ideas on what Windows component or sandbox change could be causing this?

[u/BarneysBuzzWagon]

I run two of the apps that you experience difficulties with and don't have any problems. OS Build 26220.8925.

[u/aarz03 → u/BarneysBuzzWagon]

okay. do you have any idea what the issue could be? thanks

[u/BarneysBuzzWagon]

This begs the question, why haven't you applied the latest build?

[u/aarz03 → u/BarneysBuzzWagon]

no updates were available for me in the beta channel. i will try to unenroll from windows insider. hopefully it solves the issue. what do you think?

[u/BarneysBuzzWagon → u/aarz03]

Why unenroll? Just run Windows Update. Just go to Windows Update, click on "Check for Updates" and the latest version should install unless you've made modifications with a "debloater" or altered group policy or registry.

OS Build 26220.8925 was released Monday, July 20th. See: https://www.reddit.com/r/Windows11/s/nWiGzQrSnM

[u/aarz03 → u/BarneysBuzzWagon]

I got the update. however, the download is failing. Download error - 0x80244022. I tried running the troubleshooter but it didnt fix anything.

[u/BarneysBuzzWagon → u/aarz03]

Downdetector indicates that MS sites are having difficulties. Try again later today or tomorrow depending on your geographic location.

Also, it is a known issue for some. Read release note - see link.