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If you have installed the Kaspersky antivirus and saw a message like “Activation error. Untrusted server certificate” during online activation, then this guide can help you to get it fixed. I will guide you simple ideas and tricks to get this error fixed within 1 minute of time.

I have been personally using the Kaspersky Lab Antivirus since 2011 and never encountered any issue in terms of virus. I even installed the Kaspersky Lab in my office and personal laptop as well.

You might get any one of the below error while trying to activate the Kaspersky:

Activation error. Untrusted server certificate – Kaspersky Lab

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kaspersky internet security activation error

You have exceeded the maximum number of activations allowed for the entered activation code.

Let’s move forward and check out how to fix the error code Activation Error: Untrusted server certificate.

1^st Solution: Check Licence Key

Once you have successfully installed the Kaspersky Antivirus on your system, then you will have to activate it online in order to keep it working.

After installation, the Kaspersky will prompt a window message where you will have to enter the LICENCE KEY that need to activate online and therefore you must have an internet connection.

Make sure that the LICENCE KEY that you have received from Kaspersky should be entered in the box as its mention. Please note that the KEYS are not case sensitive.

Do cross-check twice before clicking on Activate Button, once you are assured that the LICENCE key is correct then enter the code and click on Activate button, it should work !!

2^nd Solution: Check and adjust Date and Time

If the above solution didn’t work out then make sure that date and time settings are correct.

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Date, Month and Year settings can be checked at RIGHT-HAND SIDE of BOTTOM BAR.
Just click once on to the Time / Date, it will show a small pop-up button.
Now click on “Change Date and Time Settings” that will open “Date and Time” tab.
Click on “Change Date and Time” button that should look like below snap:
Set right Date, Month, Year and Time (including AM / OM), using this calendar.
Click OK.

WOW, it’s done!!

Now you can Activate the Licence Key of Kaspersky Antivirus and this time it won’t show he error message: Activation error: 0x0000002 or Activation error – Untrusted server certificate.

Enjoy!!

If you know any other solution that can help to get it fixed then don’t hesitate to leave your comment using the below form.

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1st Solution: Check Licence Key

2nd Solution: Check and adjust Date and Time

Enjoy private Internet, access to global content and lightning-fast connection speeds.

Enjoy private Internet, access to global content and lightning-fast connection speeds.

The internet is a jungle. Keep your kids safe & sound with our flexible parental controls.

Don’t be careless with your passwords. Secure them all in an easy-to-access online vault.

Free Security for Your PC

Enjoy private Internet, access to global content and lightning-fast connection speeds.

The internet is a jungle. Keep your kids safe & sound with our flexible parental controls.

Don’t be careless with your passwords. Secure them all in an easy-to-access online vault.

Free Protection for Your Mac

Breakthrough cloud security. Built to adapt to you. It goes beyond traditional solutions to protect you round the clock – based on the things you do.

Enjoy private Internet, access to global content and lightning-fast connection speeds.

Don’t be careless with your passwords. Secure them all in an easy-to-access online vault.

Free Security for Your iOS Devices

1^st Solution: Check Licence Key

2^nd Solution: Check and adjust Date and Time

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