If there is one thing that I do recommend these days for computers, is that you get a secure and strong piece of security software. While there have been many different brands of software that claim they will protect you, in the long run they actually can be more of a problem. Considering there are brands that do clog up your computer and take too much space like McAfee & Norton. But there are also other ones over the years that have undercut the value of protection for your computer like Kaspersky. Nevertheless, out of all that brands that I recommend, Bitdefender has been one of those brands that really does the best job at protecting your computer. They really have evolved nicely over the past several years, and they don't keep stopping. Their Antivirus 2018 does a excellent job at protecting your computer from all of the malware, Trojans, and phishing that can hinder your computer. While it may only prevent you from getting threats with a breeze, Bitdefender doesn't slow your computer down with after a few uses. If you only need the basics for your computer, than Bitdefender's Antivirus Pus is the best software you can get for a better sweep than all the rest.
Be cautious with Bitdefender Antivirus renewal. I found that with auto-renewal, Bitdefender will often charge more money for an auto-renewal, as compared to the current sales of the same software when not purchased through auto-renewal. My experience also suggests manual renewal is no better. Once I received an email notice to renew my Bitdefender software to the 2018 version, I clicked on the renewal email link. Instead of being charged the quoted amount, I was charged about twice the amount. Without my knowledge, I was charged for additional software I did not want. I have had about 15 emails back and forth with Bitdefender, with some frustration they did not seem to read my emails. Instead of a refund, I was offered a counter offer of a 2 year subscription. I agreed as long as Bitdefender would confirm the software would be for 3 devices, not one device. However, despite numerous emails, the Bitdefender customer service refused to confirm if the offer was for one or three devices. After several more emails, I sent them a reply email, declining their offer. I asked Bitdefender to refund the full purchase price. Their reply? They thanked me for accepting their offer, and asked I complete an online assessment of the quality of their customer service. (???) I do not know if I will ever get my refund. What I do know is that I have now moved on from Bitdefender. As far as helpful guidance to others, if you want to try Bitdefender, then my experience suggests it may be best you not auto-renew. I also recommend that if you are going to manually renew, that you do so by phone. It is possible that by talking directly with Bitdefender on the phone, you may have the best chance of getting the best quoted current price. Through a phone renewal process, you may also have the best chance to avoid being charged for unwanted add-on software.
In comparison tests BitDefender does very well but you must be be prepared if disaster strikes. I keep backups and images but a virus got past BitDefender and thwarted every attempt and method of recovery except for a power on reload of Windows 10. That causes a lot of work and time wasted. The periodic summary report seldom shows any attempts at breaching the system whereas Norton used to show many attempts so sometimes I have my doubts about how BitDefender is working. The virus that ruined my system must have been very new. I could not determine just what the virus was and could not provide BitDefender any info about it.
Well I installed this on 2 of my laptops, a 4 core i5 and a 4 core/8 thread i7. I have not noticed any performance drop on my i7 laptop but my i5 definitely has some lag now. I guess that protection has its costs. both laptops are running nvme ssd drives and both are at 8 gigs of ram.
I was having problems with chrome extensions / viruses taking down my chrome browser. I really couldn't afford to have my whole machine taking down by viruses because I use it in my home office. So, I did some research on "paid" antivirus software (the freebee stuff wasn't cutting it) and picked up Bitdefender because it was highly rated.
I haven't had a problem since installing Bitdefender (knock on wood). Also, the software appears to be very robust. It's like somebody installed CIA level incryption protection or something, with all the features this software has. You can browse sites anonymously, use it for performing highly secure credit card transactions, as well as the usual antivirus protection. They also have an option to protect multiple PC's (and macs, and I think cell phones) so you and your family can be protected under one subscription (very neat!).
All in all, I highly recommend this software if you want to protect your PC (or MAC).