so many issues with my desktop, keyboard mouse, orange screen, beeping

DESKTOP-S42JRRG HP compaq pro microtower, keyboard kensington, mouse adesso HC-3003US,

I’ve been having issues for days and trying multiple things. I am about to buy a new keyboard and mouse, but it could be my desktop..

First when I turn on my computer there is a LONG beeping sound. Which I put my keyboard upside down to see if it would help. sometimes it does. I press exit non stop to get to open. it sometimes brings me to orange screen of death. also the boot, setup, network spot. which I sometimes try do check or not recently my keyboard didnt work think I tried the uninstall part of it.. exit exit all the way to homepage then everything is good. I don’t remember what it does if I don’t press exit. but it always varies.

Yes I tried to update the keyboard and uninstall. nothing changed. Also find it very weird I can see my keyboard thing And mouse TWICE. I deleted the doubles but seems to come back. Thankfully Right now the stuck keys are not doing anything because a minute ago they were stuck on A, yesterday was d, somethings it the arrows etc. Also I get the key toggle pop up once in a while. which of course I disabled. its asking to enable it.

mouse will sometimes move on its on. non stop. I have to disconnect it and reconnect it non stop. yes I tried updating . didn’t uninstall yet. I have another Mouse I will try if it does the same thing.

I have opened my tower and cleaned inside I think because the fan was making sounds or something.

oh and did a factory reset if that’s what its called. I had trouble with my internet firewall but figured it out. windows needed to be activated. which is weird because I was using this computer already and never activted it yet internet and firewall worked until after the reset.

I try to use a microphone and I cant get it to work at all. it doesn’t hear me. when using earphone with mic. I was wondering if it was a driver missing or something. there is a spot between cd rom and something else wire marked p5 .. anyhow thank you so much in advance. I am pretty handy but I don’t know to much about computers. I am wondering if I have a antivirus on here. :/

aaaaaaaaa System Model HP Compaq 6005 Pro MT PC aaaaaaaaaaaa