@Gimli13 said in PCMatic Blocking Vivaldi from launching after last update:
...it DOES NOT "interfere" with my system. It protects it.
I'm sorry, but this statement is evidence that you do not actually understand how security software works. In order to protect a system, security software has to continually monitor it and inject itself into the decision as to what programs may or may not run. Usually, (or security software could never sell) it will do this accurately and without a significant consumption of RAM and CPU cycles. Obviously, to run at all, it imposes a cost on the system in terms of memory and processing power, but it is assumed/hoped that it costs less than it benefits. But, being a running program and usually at least two running services, it costs. Occasionally (and blacklist programs are the worst at this while whitelist programs are vulnerable to it as well) it blocks something that you need/want to run, without consulting you. Worse, it can inject itself into the very, binary, processes of how a program runs. This bogs a system terribly. Whitelist programs are the least vulnerable to this liability, but not exempt.
There is kind of no way to describe this activity other than interference in your system. It is neither intended nor accounted for by your OS. PCMatic, being whitelist, is one of the least burdensome and potentially most effective security apps you can run. But as no program is perfect, it is not perfect, and you are paying them to inject themselves into the decision as to what may or may not run on your system, and consume CPU cycles and RAM in the process. For this reason, and due to countless instances over the decades of "security" software blocking vital routines and processes on multiple systems I have owned and managed, I have stopped paying companies to stick the fingers of their software into the workings of systems I am in charge of. Rather, I consciously control where on the web my systems try to go. Result: Over 20 years of trouble-free operations, and zero infections.
Now, that's just me. YMMV. But stating that PCMatic is interfering with your system, and that you are paying for that privilege is not me being insulted. It's just me mentioning the facts. I encourage you to keep your systems secure, and to use whatever means suits you to do that. But it is good to be aware that the seeming "cause" of a problem can be an entirely different operation than it seems, and that might not be obvious to you.