Kaspersky is the worst antivirus software that you will ever encounter. Its customer service is so bad. No response from the technical team. I had installed Kaspersky Internet Security 2017 and 2018. Both of which use significant system resources. I would strongly suggest other alternatives like Bitdefender, which is regarded as the best antivirus solution. You cannot even reinstall or format the OS , and still be able to install kaspersky. The activation code will be shown as invalid. I have seen lot of forums where people are able to reinstall. But on both my PCs, I wasn’t able to reinstall kaspersky despite having both the key file and the Activation code. Plus, their web user portal is so bad that you cannot possibly even manage your licenses online. Lose your installation, then you lose your license. Don’t expect support from the technical team whatsoever. NEVER BUY KASPERSKY ,always buy something like Bitdefender.
