[STEAM (CS GO) - VAC Authentication Error caused by CCleaner]

Actually i may try to run default bios settings after a clean, been overclocking for years and i have used MSI Gaming App alot with several MSI GPUs. That might be it.
I will also eliminate alot of background processes, but one thing: This is competitive gaming and not public servers, it comes after longer than 40-60 minutes i believe. Even if it's regular matchmaking, Faceit or Esportal for example.

Getting back to you guys later.

[STEAM (CS GO) - VAC Authentication Error caused by CCleaner]

5 minutes ago, nukecad said:

Just jumping in to check something.

You're not unticking the Steam option and then running Health Check are you?

The ticks/unticks only apply to Custom Clean.
Health Check ignores any ticks/unticks.

As Dave also hints, stop using the registry cleaner and see if your problem stops then.

Please read my posts, i'm not using it anymore for 2 years. Pretty sure i have tried the most out of it since iv'e used CCleaner as long as i can remember.

[STEAM (CS GO) - VAC Authentication Error caused by CCleaner]

30 minutes ago, Dave CCleaner said:

@qeamer: Thanks for the details.  That certainly helps.  At a glance though, nothing in the BCDedit options you ran seem to relate to files that would have been affected by temp file cleaning or cookie cleaning - but may well adjust registry settings.  When you mention that you had issues after cleaning, was that after running the "Clean" function itself?  Or after doing a Registry Clean?

Always did both, but i do believe its the Clean function which does it. Even with steam option unticket.

[STEAM (CS GO) - VAC Authentication Error caused by CCleaner]

On 24/05/2022 at 14:16, Dave CCleaner said:

I believe that there have been previous attempts to advise Steam, etc that clearing space on one's Hard Drive to install games is not the same as cheating, but will little joy.

@qeamer: BCDEdit for modifying boot configuration data?  What entries were you changing to solve the problem?

After i found VAC Authentication Error Fixer 2.2 it has helped me alot when having CCleaner installed, but i did get the ban anyways after rinsing the pc.

I used mostly this one: bcdedit /deletevalue nx

and
bcdedit /deletevalue nointegritychecks
bcdedit /deletevalue loadoptions
bcdedit /debug off

[STEAM (CS GO) - VAC Authentication Error caused by CCleaner]

Dragging up this thread

Haven't used CCleaner for years now but i want it, iv'e had this problem alot when CCleaner has cleaned my pc with unticked Steam option. 

I always get a ban in middle of matches after a clean. I must say that some old ssd's did follow a newer pc build once and the problem did also occur with the new pc, even when formatted.
Been using Bcdedits for registers or VACerror fixer, then restarting the pc and all works again until next clean.

Please do look more into this, haven't had this problem since i uninstalled CCleaner for 2 years now.