TEKnician wrote:How/what does that scanning process look/feel like?
If it's running in the background, it won't look or feel like anything, unless the computer doesn't have enough CPU power or memory to spare, in which case you'll notice a lag. How bad that lag is depends on how big the disparity is between what the antivirus needs and what the computer has available. Sometimes the antivirus will announce when it's done scanning or if there's an update or some such, but that's similar to other system notifications you may see.
Can it scan while you work on a video?
Yes, but see the explanation above as to why that might become an issue.
This might be a stupid question, but is it possible to have 2 types of anti-virus software?
Possible, yes. Recommended, probably not. The more normal situation is to have an antivirus as part of a larger set of anti-malware or general system maintenance software, but the roles and scope of each program differ.