Steam doesn't start and isn't visible in the Task Manager.

[Wii U]

The title reads for itself. Nothing is working. I don't have anything related to Steam in the task manager running. Please can someone help me? I'm writing this on the browser website.

[Sen 👑]

Take a look at this thread

If nothing works, try reinstalling Steam client.

Let me know if that works

*edited out a silly formatting mistake

[Wii U]

Originally posted by Loli Pop:

Take a look at this thread

If nothing works, try reinstalling Steam client.

Let me know if that works :hana1::hana2:

*edited out a silly formatting mistake

Still doesn't work...

[The Giving One]

If the Steam client will not launch at all, or it does but crashes, check for conflicting software such as antivirus or others.

https://support.steampowered.com/kb_article.php?ref=9828-SFLZ-9289

An easy way to test this is to boot the PC into safe mode with networking and test Steam there. If it works fine there, it's surely a software conflict in a normal boot of Windows. This is a simple test and only takes a couple of minutes to do. As long as the files are intact, and there are no software conflicts, it should launch in safe mode with networking.

If it will not, that helps to maybe narrow down where the issue might be.

[Wii U]

Okay so I discovered now that the Steam client in the task manager is cancelled and everytime I try to start it, it stops it immediatley. So maybe a program really is blocking the startup of Steam.

Any suggestions?

[The Giving One]

Originally posted by Aware:

Okay so I discovered now that the Steam client in the task manager is cancelled and everytime I try to start it, it stops it immediatley. So maybe a program really is blocking the startup of Steam.

Any suggestions?

Yes, that seems likely. Did you check out my link ? Did you try safe mode with networking to maybe help confirm that theory ?

Did you make sure Steam is being totally ignored in real-time scanning for your antivirus program and any other security processes (firewall) that you have ?

[Wii U]

I looked up to your link.
It could be my Anti Virus because I have Avast, and you can but Steam to "sleep mode" in the program, which means when you don't use steam, the priority is lower. It goes out of the "sleep mode phase" when I open Steam again. Last week everything worked fine but now...

I actually didn't booted Windows in safe mode. How do you boot in safe mode with networking?

[The Giving One]

That does not sound like the correct setting for Avast. You need to add real time scan exceptions for Steam in Avast.

Any security process needs to be leaving Steam and games totally alone in real time scanning.

As for the safe mode "with networking" boot, you have not posted you OS here, but normally you use the Windows Start box (apps in Windows 10 ?) and type in msconfig and run that and then you get the option to safe boot with networking.

[Wii U]

Okay I got it.
And when I'm in safe mode, do I do the same thing with msconfig ? So turning it off and boot up normal again?

[The Giving One]

Originally posted by Aware:

Okay I got it.
And when I'm in safe mode, do I do the same thing with msconfig ? So turning it off and boot up normal again?

It's safe mode "with networking", please. If you only use safe mode, you cannot connect to the internet at all.

Again, don't know what OS you have, but you can just run msconfig in safe mode and change the settings back again, or just reboot, depending on the OS maybe.

You can Google that as per your OS before you do this if you are not sure. It's faster than me typing out a bunch of instructions for each and every OS, you understand.