Opera.exe was blocked from making system calls to Win32k.sys.

[A Former User]

A Former User last edited by

I wonder... what does this mean?
And .. how to avoid this?

Thanks.

[leocg]

leocg Moderator Volunteer @Guest last edited by

@mopw69 See https://forums.opera.com/topic/23068/instructions-on-posting-about-problems-in-opera-for-computers

[burnout426]

burnout426 Volunteer last edited by

Looking at https://www.google.com/search?q=was+blocked+from+making+system+calls+to+win32k.sys, it like you're using Windows 10 and I see in the pic you posted that you're using Opera 63.0.3368.107.

In addition to the pages listed in the search results, I see https://www.microsoft.com/security/blog/2017/10/23/windows-defender-exploit-guard-reduce-the-attack-surface-against-next-generation-malware/?source=mmpc. It appears it applies to Chrome and other apps too.

[A Former User]

A Former User last edited by

Thanks.
I'll let it rest. There is no simple solution for this.
@leocg
Temporarily disabling extensions is simple.
Disabling adblocker okay
but then ..
reset to defaults, whereas I see no way to save the Opera-settings first(?)

I have disabled the extensions and adblocker, exited and relaunched Opera. Still the warning shows up in the event log.

@burnout426
Thanks for the reply. I am using Emsisoft for anti virus matters and Windows Defender serves for Firewall.

As said, it is all way too complicated and one more or less has to be a Windows expert trying to solve the matter.

Being only warnings and no errors and everything is working fine, well, no use to spend that much attention to it.
Was hoping it would be some setting that should be dis- or enabled.

[leocg]

leocg Moderator Volunteer @Guest last edited by

@mopw69 If you just rename the current profile directory, you can get its contents later.

[donq]

donq @Guest last edited by

@mopw69 said in Opera.exe was blocked from making system calls to Win32k.sys.:

@burnout426
Thanks for the reply. I am using Emsisoft for anti virus matters and Windows Defender serves for Firewall.

Well, as first step, disable Emsisoft antivirus completely. If this helps, contact Emsisoft support - it would certainly be not the first time, when third party security tools interfere with legit applications.

[leocg]

leocg Moderator Volunteer @Guest last edited by

@mopw69 Don't forget the main point of those instructions, that is to provide information to help understand and reproduce the problem.

[A Former User]

A Former User @donq last edited by

@donq
Thanks.
Yes, I tried that as well. Regretfully it makes no difference.

[A Former User]

A Former User @leocg last edited by

@leocg
Am very sorry, I am not an expert on this. I wouldn't know where to look and what to do. It sounds pretty much as a newbie, I know...
But I don't want to mess things up.
If my memory serves me well, way back, when I was still using Firefox (yes, it sounds like cursing here...) there was a way to launch that browser in a 'safe' mode, hence without all extensions, or whatever. More or less default.

FWIW software info
Windows 10 x64 1903 (18362.388)
Opera v63.0.3368.107

[leocg]

leocg Moderator Volunteer @Guest last edited by

@mopw69 You can find the path to the profile directory in Menu > Help > About Opera