About one and a half days ago I woke up and turned on my laptop. Nothing out of the ordinary like it being dropped or getting water inside happened any time this week. Within about two hours of me using it, I noticed that my left and right mousepad buttons wouldn't work and sometimes the laptop wouldn't let me type at all.
I couldn't open my Brave or Chrome browsers(the main ones I use), but it allowed me to open the ones I don't like Edge and Firefox.
Skip forward a little bit and I tried multiple different things. Multiple anti-virus checks, making sure I wasn't keylogged, clean the battery and check out boot settings, reinstall touchpad/mouse drivers, etc. But nothing was working.
Eventually I decided "to hell with this" and factory reset the whole thing. Now, the right touchpad button DOES work much more often than it did before the reset, but it'll still randomly die on me and make me unable to click anything. The right button(properties) doesn't work regardless of what option I switch it to, and the double tap to click feature seems to be completely disabled.
Does anyone have any idea of what might've happened to me? I also lifted the buttons a bit and used some compressed air to maybe clean out crap that might be stuck inside, but it didn't help a thing.
Note: A mouse DID work just fine whenever I plugged it in.
My laptop in question is a Dell Latitude E7450 that was purchased about 4 years ago. The warranty just ran out, unfortunately, so I'm doing all I can to fix it without taking the thing to a shop.