Take a look at this thread, maybe a screenshot of the trusted app settings will help.

Man könnte es möglicherweise an die Topics (ganz oben im Forum sind einige Informationen zu lesen) bringen.

Hallo @Wahnfried1883, hier im Forum wird von @Schulte immer über die Aktualisierungen berichtet. Patchstand Zu finden auf der 2. Seite in diesem Forum. MfG Tschekker Windows11 Pro, Version 25H2 (KB5072033) (26200.7462) Kaspersky Premium: 21.23.6.614(a) Kaspersky Passwort Manager: 25.0.0.501 (a) / 1763465807_7738 / 1.1.0.2_1 Kaspersky VPN: 21.23.6.614-2 (a)

Buenos días, ¿Has instalado alguna actualización de Windows recientemente? Normalmente, Microsoft persiste en algunas de sus actualizaciones en activar Microsoft Defender. Ve a Actualización y Seguridad > Seguridad de Windows > Abrir seguridad de Windows > Protección Antivirus y contra amenazas, comprueba que te ponga Kaspersky y en opciones de Antivirus de Microsoft Defender comprueba que este desactivado, y sino desactívalo. Saludos

Hello @Inexperto, Thank you for posting back! A. Please share the *full* Win11 25H2 *version & build* information, in Windows *Search* type WINVER, open the WINVER app, post back the information shown in the WINVER popup please? Without *accurate* information it's difficult to assist *however* IF (you) had Kaspersky Total Security - KTS - (as the topic is logged under) & OR Kaspersky Internet Security - KIS - (as in yr current reply) *both* products are from Kaspersky's *old* Home range, *both* have been replaced, KIS by Kaspersky Standard & KTS by Kaspersky Plus -Kaspersky is offering a *free-like-for-like* upgrade, read: Kaspersky: Basic, Standard, Plus, Premium - info & FAQ, by Kaspersky Danila T. After reading the information, install the *new* Kaspersky software by downloading from (your) MyKaspersky account, then make sure: The Kaspersky application is signed into so it synchronises with (your) MyKaspersky account. A Full scan is run to completion. Run a manual Database update -> when these steps are complete - shutdown the computer, using SHUTDOWN - not Restart, then power ON by pressed the power button, login, recheck IF the original issue - Windows apps going OFFLINE persists? IF the problem continues: log a support request, on the Kaspersky Customer Service page: https://support.kaspersky.com/b2c/global#contacts, select Email & fill in the template as shown; provide a *detailed-history* || Select (your) Kaspersky software from the drop-down-list (A) *Note: do not select the AI-bot to log the case* Please share the outcome with the Community, when it's available? *also* - in the Control Panel\System and Security\Security and Maintenance\Reliability Monitor - which AlexeyK guided (you) too, there should be events similar to: Thank you🙏 Flood🐳+🐋

Hello @DigitFish, Welcome! Please share the *full* Win11 25H2 *version & build* information, in Windows *Search* type WINVER, open the WINVER app, post back the information shown in the WINVER popup please? In the troubleshooting & problem determination/steps to resolve - has the computer ever been SHUTDOWN - using the *Shutdown* option - not Restart, a time delay of at least five minutes - then the computer restarted by pressing the power button ON & logging in? For *our* clarity, when (you) say: "Actually when I use Kaspersky Internet Security, sometimes this problem appeared. " - does that mean the red-icon issue pre-existed the install of Kaspersky Standard? Has Kaspersky Standard been fully *uninstalled* using Windows - Add & remove programs, the computer shutdown, using SHUTDOWN - not Restart, powered ON by pressed the power button, logged into & a *new* Kaspersky Standard downloaded & installed from (your) MyKaspersky account? IF 'no', please do this procedure, after installing the *new* Kaspersky Standard, make sure: The Kaspersky Standard is signed into so it synchronises with (your) MyKaspersky account. A Full scan is run. Run a manual Database update -> -> when these steps are complete - shutdown the computer *again*, using SHUTDOWN - not Restart, then power ON by pressed the power button, login, recheck the red-icon? IF the red-icon persists OR returns within the next 48hours & is not related to an app or module-update, log a support request, on the Kaspersky Customer Service page: https://support.kaspersky.com/b2c/global#contacts, select Email & fill in the template as shown; provide a *detailed-history* *Note: do not select the AI-bot to log the case* Please share the outcome with the Community, when it's available? Thank you🙏 Flood🐳+🐋

Галочку на первом скриншоте "Всегда доверять этому сертификату в последующих сессиях" ставить не пробовали?

Добрый день. Обратитесь в техподдержку. Нужны отчеты о системе, чтобы понять в чем проблема. На форуме мы не можем их запрашивать.