Not really ... with all that you said and lots of adware removers, and trojan removers, and virus scan, and tweaks to patch holes in Window$'s armor (so to speak) ... (imagine an armor made of swiss cheeze ... yummy, but not particularly useful for defending yourself). Viruses and trojans still got in, and lots of malware and adware and shit ... nah, I wouldn't call it secure enough for anyone in their right mind ... but it might just be me ?
It really was ridiculous right near the time before I switched to Linux ... my computer was overflowing with bullshit, and it just couldn't be stopped ... except by formatting
And you do realize that you do have to re-install Window$ every 1-2 years (and no it's not easy, cuz of all the maintainance software, like an old man that needs life support to live, Window$ must have maintainance software, so it can stay alive for just a few more years ... and then terminal cancer sets in and it dies !) ... just for your pleasure ... nah, just cuz it's a piece of shit ! It isn't really an operating system it's a self-torture device ... it brings you pain every day, as if you didn't have enough. But hey there are people who enjoy it ... who am I to disagree ?
Dammit I'm ranting again
Window$ is to dieing old man on life support as Linux is to World Champion athlete (and yeah, don't forget about BSD, if you ever figure out how to use it)