there are not "hot singles in your area"
Unless your running windows ME or older, or windows xp on a TI-83, your registry doesn't need to be cleaned
if your buying a pc, get a SSD.
"hackers" haven't taken over your pc. Unless you're fucking loaded, your not worth the hassle of an individual attack. You've most likely downloaded some sort of malware or your kids/neighbor/ex/someone you know is fucking with you.
Steve (the one with the accent) from microsoft doesn't work for microsoft at all, he's a street shitter who wants to scam you out of your steam/apple gift cards.
If you own a computer that you didn't build yourself microsoft has already collected their money from you, and will not provide any technical support. They do not give a fuck about you and will never call you. Even if you somehow do manage to get in touch with someone from microsoft on the phone they can't help you, and will blame any problem you have on your PC manufacturer, ISP or third party software vendor.
from my own experience, eset nod32 and windows defender are the only two antivirus programs that aren't going to make your computer run like shit or massively fucking break something. The best thing about eset is that it blocks PuPs (potentially unwanted programs) by default. Things that aren't necessarily malware/viruses but allow other shit to get in, or make it easier for you to get yourself fucked up.
stop fucking reusing passwords. "Oh its a good password" when it does get leaked at some point, they've got a skeleton key that opens every door in the kingdom.
just use a password manager, it may take a while to get everything in it, but it will greatly improve your quality of life. its like a ram upgrade for your brain.
Apple is a meme. generally overpriced for what you get. they're not really much better in terms of security (they're based on unix, maybe slightly better than windows), the big thing is more malware and general attention is paid to windows security because it is on the majority of computers so it is a bigger/easier target. their entire design philosophy is designed around the least common denominator. if you don't like computers, or just want an appliance to browse the internet/facebook/porn/youtube get a mac, or better yet an ipad. The limited storage and constrained permissions make it a lot harder for you to severely fuck it up in a way that can't be fixed with a factory reset (except physical damage of course)
outlook has a delete button, and a trash bin for a reason. fucking use them.
Hoarding every bit of goddamned junkmail since the 90's or hanging on to every email someone sent you with an attachment (pictures/important documents) is going to cause a problem eventually. outlook pst files (basically a big fucking file that it stores all of your messages in) are prone to corrupting and fucking up severely once the file gets too big, and its goddamned tedious to fix.
just delete old emails from time to time. save the fucking attachments in a folder like all the other files on your pc.
better yet, stop using fucking POP like some fucking caveman, switch to IMAP and let the goddamned mail server deal with your hoarding.
RAM "memory" CAN make your computer faster. Its not going to make your 2009 celeron run battlefield 4, it probably wont make your bootleg movies download faster, but if your computer runs like ass when you've got more than 3 windows open ram may help (unless you have a celeron from 2009, then its just your cpu is shit)
think of it like this, if your cpu is the engine of a truck, ram is the truck bed. a celeron with 16gb of ram is like an S10 with a dumptruck bed on it. Lots of room to haul shit, no power to move it anywhere. an i7 with 4gb of ram is like a dump truck with a cardboard box to haul shit in.
Another security researcher found a non-documented flag on an older VIA chip not too long ago that basically gave you full Ring 0 access to the machine from whatever process. This was just something he found in the first random machine he picked off the shelf he knew nothing about. It took him quite a bit of work to find it, such things are not easy to find if they are there.
i remember that video. I think it was like a c7? they had flag that flipped turned on a secondary "core" that shared like one or two registers with the main processor (but had full cache/ram access) something like that that he had to feed instructions through and (a whole new instruction set) he ended up brute forcing the opcodes until he was able to get a basic halfassed assembler that could run shit on the second cpu, completely out of band that could only really be detected by religiously watching that one register
That's the sort of wholesome deep magic I like learning and reading about. I need to look that shit up again, wasn't it a defcon talk?
EDIT-
https://www.youtube.com/watch?v=_eSAF_qT_FY