
And most of these anti-virus vendors expect you to pay for these "privileges". Then there are multiple where anti-virus has become a system vulnerability it had a bug in its code, and since anti-virus by its nature constantly scans files and incoming network traffic, those types of bugs are exploitable in a wide range of ways. And that's all before considering the multiple cases where third-party anti-virus has turned out to be the cause of Windows updates or new release upgrades failing, because the AV solution had hooked the OS in some way that Microsoft didn't recommend or support, so when MS changed something that nobody else should have been using, the AV solution broke and took the whole system down with it. That's probably why Macrium has this KB article. There are several cases in this very forum of anti-virus doing things like blocking or dramatically slowing down image backup creation, causing Rescue Media creation to fail, etc. I gave up third-party anti-virus years ago because Microsoft's built-in Defender has gotten quite good, and everything else on the market seemed to be some combination of bloated, expensive, "noisy" in terms of notifications, or problematic in terms of interfering with legitimate activity. You can read more about Image Guardian in its KB article here and decide if it's protection you'd like to have.

However, I don't understand saying, "Why do I need Image Guardian? I don't have any ransomware or viruses on my computer." By that logic, you could say, "Why do I need Norton Security? I don't have any viruses on my computer." The point of both Image Guardian and anti-virus is to mitigate the consequences of a possible future incident. Image Guardian is only meant to protect against modifications or deletions, so I'm not sure what Norton is doing with your backup files that's causing MIG to throw an alert.
