There are games that steam don't launch

[GabsHenrique]

Basically, i installed a couple of demos for playing with my friends. However, when I try launching this games, they won't even start. All of the games that I tried to play have "BootStrapPackageGame" in the .exe file. I already tried all sorts of things, but nothing worked so far. (I know that my PC is capable of running this games)

[Dranak]

Most here will not look at demos issue, but you forget 1 thing here ,we are steam users. we dont know your pc or games you try to run, or did you even ask each own game forum why they dont work or contact game support,

Sure we can all say maybe you should check Brand name pc for BIOS and all its drivers and have windows updated.

and we are also done with past windows version that has ende lifecycle here.
we assume you have win10/11, linux and mac has own steam forum if thats what you have go there and ask them.

[Dranak]

I could also say dont have other pc issue
DISM.exe /Online /Cleanup-Image /Restorehealth
SFC /Scannow
chkdsk c:
chkdsk d:
chkdsk e:

ps.
But in your casae you might hope you have a issue, because if all is update and checkup do not find a issue, then could have Antivirus blocking issue or game do not work at all, not the first time demo's get issue, and you are back at contact each game support with its own game issue.

[Phénomènes Mystiques]

Unless you need specific VC drivers to run software (i.e. for Visual Studio) → Remove all those "Microsoft C++ Redistributables" in "Programs & Features" < Uninstall Apps and grab every version at the URL below for both x86 and x64 → 12 total which should help a bit and if other specific versions are needed, Steam uses their own client redistros which includes everything under the sun including DX subs (it is either this or you need a specific DotNet to run the Demos):

https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist

[GabsHenrique]

Originally posted by Iceira:

I could also say dont have other pc issue
DISM.exe /Online /Cleanup-Image /Restorehealth
SFC /Scannow
chkdsk c:
chkdsk d:
chkdsk e:

ps.
But in your casae you might hope you have a issue, because if all is update and checkup do not find a issue, then could have Antivirus blocking issue or game do not work at all, not the first time demo's get issue, and you are back at contact each game support with its own game issue.

Hey, first of all, thanks for your help. Unfortunately, I already tried running this commands in the Command Prompt, and nothing wrong was found, I tried emailing all the supports, but none of them answerd me. My last resort was to create this topic hopping that someone could at least understand why this is happening, but I guess my PC have a rare problem
And yes, I have win10, One of the games that I tried was the KLETKA demo (it isn't a heavy game, a friend of mine that have a weaker PC was capable of starting it)

[GabsHenrique]

Originally posted by WinterSolstice:

Unless you need specific VC drivers to run software (i.e. for Visual Studio) → Remove all those "Microsoft C++ Redistributables" in "Programs & Features" < Uninstall Apps and grab every version at the URL below for both x86 and x64 → 12 total which should help a bit and if other specific versions are needed, Steam uses their own client redistros which includes everything under the sun including DX subs (it is either this or you need a specific DotNet to run the Demos): :csd2smile:

https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist

Thanks for trying to help me :) . Sadly, your solution didn't work. And not necessarily demos that don't work, is just that they are the majority of games that won't open when I tried.
Here is the list of games that have this same issue:

KLETKA demo
Drive Beyond Horizons demo
Dark Hours: Prologue
Fast Food simulator: Demo
Fast Food simulator: Prologue