Stuttery, laggy computer that used to be good

I'm not sure if this is what caused it, but one day I opened discord(a communication program) and everything on my computer functioned in slow motion all of a sudden. Scrolling became slow motion on websites, and even my CSGO game was in very laggy slow motion. Even my friends could notice it when they spectated me(weird). I restarted, and suddenly my computer acted... slow? The audio stutters and the computer itself lags once about every 3 or 2 seconds or so, it's very noticeable in skype calls, videos, or video games. Also, if it is worth to mention, steam is very very laggy and responds very late to my input. It was all very strange, and I have tried:
updating my drivers(all of them through device manager)
system check through cmd
antivirus scans with malwarebytes
registry and clean with ccleaner
clean startup(did no good, everything remained the same after disabling all services on startup*

This computer used to be good, very very good. At least to my standards. It could run csgo at a constant smooth 60fps and league of legends at a constant 90-120 fps or so. I could also video edit with adobe after effects and make multilayered big projects (which got laggier over time, but still worked fine even though it was a laptop).

I've really wanted to do a factory reinstall, but I was stupid and during a time where I tried to clean up space on my laptop because my perfectionist self wouldn't allow less than 200GB free on my laptop, I deleted everything within the HP_RECOVERY part of my computer. Yup. I've been thinking of doing a clean install of windows or whatever it's called. But I'm not sure if HP needs it's own specific installation or anything like that, but whenever I try to contact them in any other way besides calling (which on their website, the only way is to chat with them. "chat" as I get stuck in identifying my product, because even though it is the same product identified it still tells me I'm wrong, I pick the "right" one which is the same exact product and nothing happens after that, and I go back to entering my serial number and it tells me the product is wrong and I select and over and over and over.) Is it possible to order or ask to order hp recovery disks through calling? Has anyone tried?

If I am able to do a clean install of windows, I'm very scared of messing up and not being able to install drivers. I've been thinking of putting the setups of the drivers in a separate usb, but I'm not sure if it will work, and since there are drivers for USBs, I'm scared that with no drivers it won't be able to detect my USBs. If I am able to clean install windows, can anyone help me on how to backup drivers?

Oh, and here are my specs (haha sorry)
Computer is a HP Elitebook 8760w
Intel Core i7-2620M CPU @ 2.70GHz
RAM 8.00 GB
Windows professional 64 bit
Graphics card is a nvidia quadro 3000m

I know this is a lot to ask and thats why I didn't really have a specific forum to put it on and therefore I put it in general, but if you could answer or help with any one of these questions it'd be a great help. And I don't know whether or not if this is a CPU usage issue, it never goes to 100% or spike to anything around that area so I'm not exactly sure, but the performance is similar to performance of computers that do have CPU overusage(is that a word). Sorry if I sound annoying and stupid, I really am. This is a lot to ask and it be nice to fix this one way or the other.

ignatzatsonic said:

Do you have any available "System Restore" points?

I'd guess HP will sell you a set of recovery disks, but I don't know the details.

As a general proposition, drivers are provided by your Windows installation disc during a clean install. The only one I'd try to make sure I had before I began the install would be the Internet (NIC) driver, which you'd need to establish an Internet connection. It should be supplied by Windows during the installation, but I'd try to download it beforehand in case you have problems getting Internet going. If you have the Internet going, you should be able to eventually run down any additional drivers you might need if they are not supplied directly by Windows.

For future reference, the standard way out of a mess like this is to restore a previously made image file---using an app such as Macrium Reflect, Acronis, or Aomei Backupper. That won't help you now, but it's a 30 minute fix that you could have employed.

Could you tell me a way to install the Network driver on a computer that I freshly installed windows on via burning the windows sp onto a USB? Do I put the setup into a separate USB, or...

I checked and there were no system restore points. Guess I should've done that, oops. I'll definitely back up my computer in the future.

ThrashZone said:

Hi and welcome to SevenForums,
Use resource monitor and the Overview section to see what all is going on
Just click Start and type
resource monitor
In the search box,

Also use realtemp to monitor the core temps and load when it lags...
Download Real Temp 3.70 | techPowerUp

Is this supposed to happen?

ignatzatsonic said:

Regrettage said:

Could you tell me a way to install the Network driver on a computer that I freshly installed windows on via burning the windows sp onto a USB? Do I put the setup into a separate USB, or...

I'd probably go to the HP support site for your particular model and download all available drivers and put them on a separate small flash drive.

But, I'd try not to use them unless I had troubles with the drivers provided by Windows. The most important one to get is the NIC driver because a working Internet connection is so important, but you may as well get them all if you are going to bother to go to the HP site at all.

Some people are obsessed with always having the latest drivers, but I'm more of a "if it ain't broke, don't fix it" type. Suit yourself.

I'm very fearful of wrecking myself if I don't check myself so could you tell me specifically how to back up drivers haha sorry

ThrashZone said:

Hi,
No not unless you have an invisible machine :)

Close it on the top right,
Right click your Taskbar and select Start task manager.
Performance section across the top and on the bottom click on Resource monitor.

Hey sorry, school's been busy lately so I haven't been checking, but I guess I have an invisible computer

Sorry for the inactivity, hope you're still here to help, thanks!