Butting in here to say that OP can run Avast in Passive Mode if they wish-- on-demand scanner with updates.
Don’t think Kaspersky has that feature.
But yeah, only one(1) antivirus is needed.
The Anti-Viruses don’t like each other and Flag each other as Malicious? Also is Avast better than Kaspersky?
Thanks! It is Good to know i can continue using Kaspersky without having to remove Avast! 
Avast comes with Malware? :o
So it is Malware that sometimes comes with Avast rather than Avast coming with Malware?
Some Companies put their Anti-Virus on Malware that is distributed Online? 
That’s some Shady Stuff… It implies that some Anti-Virus Companies are involved in creating Viruses even… Do all of them do it? Did Kaspersky do it?
It implies that some Anti-Virus Companies are involved in creating Viruses even… Do all of them do it? Did Kaspersky do it?
Many users believe that it is the anti-virus developers themselves who make malicious programs because it’s lucrative for them—after all, if there are no viruses or Trojans, users won’t be buying anti-viruses.
This myth is based on false premises that the number of malicious programs released daily is rather small; that several programmers can easily write such programs; and that, of course, those programmers work at anti-virus companies.
- The number of malicious programs crafted by criminals is so great that three shifts of security researchers are kept busy seven days a week. Anti-virus companies have a hard enough time dealing with the constant incoming barrage of malicious programs, so it makes absolutely no sense to believe that they would develop malware themselves.
- Any IT security expert who writes a malicious program is engaging in a pointless exercise. If the program’s signature gets added to the database of the anti-virus he/she helped to create, user computers will immediately be protected from the malware, and shortly thereafter, the Trojan will be added into the databases of other anti-viruses. Why waste one’s time?
- Engaging in the development of malicious programs is a criminal offense. Those found to be involved in this sort of activity run the risk of getting put behind bars. And they will be exposed given the fact that malware researchers have a sufficient number of foes.
- Anti-virus developers do not design viruses, and, moreover, they don’t even circulate known malicious files for testing—something customers deploying new software and journalists wanting to compare anti-viruses ask us to do regularly. If a company is ever found to be involved in the development or distribution of malicious software, its business will be doomed.
- Many anti-virus companies—Doctor Web included—never employ individuals who have somehow been involved in illegal activities related to hacking. Anyone who has ever engaged in malware development has low moral standards.