[SOLVED] "Disable Telemetry" Tweak Causes Crashes with Full-screen Applications

[JustTakingNotes]

RESOLUTION: Use REGEDIT and navigate to: "HKCU:\Control Panel\Desktop" and delete the DWORD "HungAppTimeout" Then Restart. This should fix flickers and fullscreen crashes. If you continue to have issues you may consider also deleting these DWORDs within the same path: WaitToKillAppTimeout, AutoEndTasks, LowLevelHooksTimeout, and WaitToKillServiceTimeout as they are not native to the registry but are added by the Debloat Utility. Restart after Registry changes to apply. Then reopen affected program. Refer to attached picture below.

INITIAL PROBLEM: After rebooting to apply "Disable Telemetry" tweak, full screen applications (games) will misbehave. The FS app will repeatedly "flicker" causing the desktop to momentarily become visible. In a multi-monitor setup you can see the app's taskbar icon shift to the end as if it were the last app started, even if it wasn't (the icon shifts as if the app were momentarily closed then rapidly restarted. It will continue doing this sliding motion concurrent with the "flickers"). ALT-TAB'ing out of the app will cause it to freeze and crash.

I have experienced the issue with: Steam Big-Picture Sekiro (No flicker, ALT-TAB crash only) Honkai 3rd Impact Genshin Impact

Disabling Telemetry successfully reduces process count significantly and can be reversed by system restore. Bloated processes and FS app functionality restored upon system restore.

Only Telemetry Tweak caused instability from "Desktop" selection in Tweaks section.

Video of the Flickering: https://www.youtube.com/watch?v=coqkDNgc0NM

[ionascugabriel]

I wanted to investigate more because i have the same issue and wanted to see if the cause were other options as well. It happened after i've applyed "Disable Telemetry". For me it happens in desktop as you can see: random flickers, refresh, lost mouse contact of windows, unable to open random apps/games who are in taskbar or with alt+tab and generally some weird behavior. It also happens in safemode. For me using the "Undo all Tweaks" didn't fix the isue.

[BauFender]

It happens the same to me, I run desktop predefined tweaks and now I can not alt tab in full screen games like valorant or trackmania. Restore windows to an older point not fix the problem. Help :(

[ionascugabriel]

Btw, can we have some temporary or hot fixes for this like some registry keys, services we can edit/enable?

[JustTakingNotes]

I had to manually create a system restore point prior to performing the tweak to undo it. Using the undo tweaks option didn't fix the problem. You'll likely have to do a fresh install of windows if you didn't create your own restore point.

[BauFender]

You'll likely have to do a fresh install of windows if you didn't create your own restore point.

Not for me. Restore to a very old point not fix me the problem.

[JustTakingNotes]

Fixed the issue on my computer. Edited top post. Please try and post results.

[ionascugabriel]

@JustTakingNotes Thank you very much! for me worked with just "Use REGEDIT and navigate to: "HKCU:\Control Panel\Desktop" and delete the DWORD "HungAppTimeout" Then Restart. This should fix flickers and fullscreen crashes." All seems to work well so far. Well see how it goes. Again TY! (didn't really wanted to reainstall windows)

[ionascugabriel]

For now is working fine event with DWord -Value 10 but well remember this. TY.

[BauFender]

@JustTakingNotes Thank youuuuuuu

[ChrisTitusTech]

Thanks for posting this all. Posting a fix in the official script right now.

[ChrisTitusTech]

Merged the following powershell command to fix this. Just rerunning the tweaks OR undo all will fix the issue. Commit: b3daa2f32ca4da7f2c46691970ccc3ce328c1455

Or just type this in powershell Remove-ItemProperty -Path "HKCU:\Control Panel\Desktop" -Name "HungAppTimeout" -ErrorAction SilentlyContinue