Blocked from using Chromium (Chrome, Edge) browsers

[inoble]

OS: Windows 11 Home (Version: 24H2, OS Build: 26100.6584, Experienec: Windows Feature Experience Pack 1000.26100.234.0)

Kaspersky Anti-Virus version: 21.3.10.391 (m)

Explanation:

On 10th September Windows 11 installed an update and since then Chromium browsers (Chrome and Edge) are showing the attached screenshotted error on all websites except possibly Google-affiliated websites like google.com and youtube.com?! Firefox works fine. Also when I employ the fix I'll outline below I find that, even though I'm then able to access any website, I'm logged out of all websites and I'm having to agree to cookies all over again etc. as if I've never visited them, also all my extensions are disabled except the built-in Google Docs extension.

I've run through it with ChatGPT for about 4 hours now trying an insane level of methods to fix the issue. I rolled back Windows updates, reinstalled them, checked proxy settings, reset Winsock and flushed DNS, cleared my SSL state, checked for corrupted updates (sfc /scannow + DISM /Online /Cleanup-Image /RestoreHealth) etc.etc.etc.

I have not yet tried to reinstall Kaspersky.

What I found fixed the issue was two things that have to be operated in tandem: (1) Opening Kaspersky -> Settings -> Network Settings -> Toggling "Do not scan encrypted network connections"

(2) Completely pausing Kaspersky protection.

 

It's got to the point where ChatGPT is all out of ideas. You're my last hope.

[harlan4096]

Welcome to Kaspersky Community.

 

1st I would migrate Your old KAV to Kaspersky Standard:

 

 

[inoble]

I guess ChatGPT only gets you so far, that worked!  Thanks!