I am posting here because I honestly am unsure what is wrong with my laptop. I own a Dell XPS and I dropped it a few months ago (the LCD screen got detached but other than that my laptop still turned on fine and seemed like it ran the same). To be on the safe side, I sent my laptop back to Dell and had them replace the LCD and also wrote in the comments "I dropped my Laptop, if you could run a diagnostic scan that would be great". They sent my laptop back and it seemed like everything was running smoothly but am unsure if they even ran a diagnostic scan or not since it was working pretty fine before I sent it in.
Anyhow, months later, my laptop is now growing slower. Today I tried to update my Windows and I noticed that I couldn't even run Windows Update (after a few searches on Google and a fix to my registry I was able to finally run and get my updates, which I am doing now). Since I couldn't run Windows Update, I checked my Windows Firewall too to see if it could run and I noticed that I can't even turn it on (gives me an error) which I am attempting to fix now.
I believe my laptop is suffering from some kind of rootkit or stealthy virus/malware which none of my programs can find. I just un-installed Microsoft Security Essentials and downloaded Avast! AntiVirus and scanned my computer but nothing was infected. In addition, I ran Spybot as well as MalwareBytes and nothing came up either. Is there a program which tells me if my laptop is running at its best performance? It seems like there is something hidden in my laptop that is affecting its performance because my programs are opening up slowly.
If anyone can help me, it would be greatly appreciated. Thank you!
Edited by seracdroid, 16 January 2013 - 08:46 PM.