"an issue with your computer is blocking the vac system"

So this is the first time I am experiencing... ever.



I get this message for every server except PF. It just started happening and I don't know why or what to do now, I've already tried some bcedits in my command prompt, repaired the steam service and reset my computer several times.

I've looked over the programs I have recently installed and none of them should conflict with Vacs system, like in the past couple weeks I have installed Restream chat, EFT and like ps2 rom 007 nightfire.

What can I do to fix this.

EDIT; Just to add, when I restart Steam and my computer, it'll let me join a server for about 5 seconds then it kicks me with that message....

I knew you would be able to help. I ran a one time test with that Hitman Pro and it said I didn't have any threats but over like 150+ cookies, I went through my appdata and cleared out Chrome and deleted a bunch of other stuff but after trying to join a server it, it kicked me within like 5 seconds again. I am going to look for another program to scan my computer now, just to check.

edit: I just deleted everything in my steam folder except steamapps, userdata and the steam.exe. I am gonna let it rebuild and hopefully it'll work.

EDIT2: it still kicks me...

EDIT3: ran several tests, no threats. still won't work.

https://support.steampowered.com/kb_article.php?ref=2117-ILZV-2837 You try all of these already? And/or run Malwarebytes?
Ooh, also this? https://steamcommunity.com/sharedfiles/filedetails/?id=516149301 I didn’t read it fully but I think the two links are different, if not, maybe the thread still has helpful info?

elaborate, me potato.

Check this out: https://www.reddit.com/r/tf2/comments/86zmim/an_issue_with_your_computer_is_blocking_the_vac/

ur a clown bro

as stated in the original post, i tried this man. i'll do it again though.

@Kables, try these things. One, reset your AV product/firewall etc with steam closed and re open it. Then allow full access to steam when it is open and CSS when prompted by windows firewall or third party firewall program. If the issue persists, uninstall Steam, then delete the steam folder in the program files directory and then re install steam. If that fails, then try creating a new user profile on the computer, then re log into steam and see if it works. If that doesn't work backup your data and re install windows and that should indeed fix your problem. Report back your findings.

oh shit my bad bro

you try messing around with DEP?

Problem fixed, reinstalled Steam, said fuck it. did some bcedits again. It works now. Thanks for all the help.