Why does CCleaner cause a VAC Error?

[Guiltron]

Title.

[Snaggle]

I don't think the exact reason is known but some suggestions out there point towards log files that CCleaner is able to clean up that VAC uses to try and catch cheaters. Some cheats used to clean these log files to avoid detection.

That might be completely wrong however. But the bottom line is it causes the problem for some people and not others, so there is a feature within CCleaner that some people have disabled that prevents the error.

[Guiltron]

Originally posted by Snaggle:

I don't think the exact reason is known but some suggestions out there point towards log files that CCleaner is able to clean up that VAC uses to try and catch cheaters. Some cheats used to clean these log files to avoid detection.

That might be completely wrong however. But the bottom line is it causes the problem for some people and not others, so there is a feature within CCleaner that some people have disabled that prevents the error.

But can it get you banned by VAC? I know that apps like CCleaner and CE only cause VAC Errors, but i got banned because of CE, so i can't guarantee.

[C²C^Guyver |NZB|]

Originally posted by Guiltron:

Originally posted by Snaggle:

I don't think the exact reason is known but some suggestions out there point towards log files that CCleaner is able to clean up that VAC uses to try and catch cheaters. Some cheats used to clean these log files to avoid detection.

That might be completely wrong however. But the bottom line is it causes the problem for some people and not others, so there is a feature within CCleaner that some people have disabled that prevents the error.

But can it get you banned by VAC? I know that apps like CCleaner and CE only cause VAC Errors, but i got banned because of CE, so i can't guarantee.

Errors...aren't bans.


https://support.steampowered.com/kb_article.php?ref=2117-ILZV-2837&l=brazilian

CE will indeed cause a ban if it is used to cheat.

[The Giving One]

CCleaner has a monitoring mode section and feature in the program, that runs by default automatically and upon installation of CCleaner.

That is usually what is the issue with CCleaner and VAC. Disable that monitoring mode and then try again.

Or, disable CCleaner from launching automatically on boot in msconfig and apply.

EDIT.................

This...

https://imgur.com/a/FA9cCL0

See how they are disabled, all of them in that section ? If your version of CCleaner has that feature, that is usually the issue with VAC authentication and/or Steam and/or games.

Regardless, you don't need any "monitoring" of your PC by programs like this while playing games or at all for that matter.

[Guiltron]

Originally posted by The Giving One:

CCleaner has a monitoring mode section and feature in the program, that runs by default automatically and upon installation of CCleaner.

That is usually what is the issue with CCleaner and VAC. Disable that monitoring mode and then try again.

Or, disable CCleaner from launching automatically on boot in msconfig and apply.

EDIT.................

This...

https://imgur.com/a/FA9cCL0

See how they are disabled, all of them in that section ? If your version of CCleaner has that feature, that is usually the issue with VAC authentication and/or Steam and/or games.

Regardless, you don't need any "monitoring" of your PC by programs like this while playing games or at all for that matter.

I see...

[The Giving One]

Now I cannot confim that is the case every time with CCleaner, but I have seen that monitoring mode of CCleaner cause all kinds of issues with VAC, Steam, and games, too.

It was once listed here, before the support page was updated for simplicity :

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