(Let me know if these links to the images don't work).
My computer has been slowing down, Google Chrome is running slower than it should be, whenever I play Sims 3 the game freezes and shuts down. I have a Windows 7 Home Premium operating system, it is 64-bit, and a Dell Latitude E6400.
I found the information on your website on what to do for a Trojan virus, so I downloaded Rkill. Except every time I try to start it Rkill says "Appdata can not be found, Rkill terminated" (or something very similar), and a windows popup error says "There was a problem retrieving the necessary environment variable; appdata. Rkill has terminated!" And then it shuts off. I also tried Rkill unsigned version, but every time I even try installing it my Microsoft Security Essentials has a popup saying "security threats are being cleaned, no action needed." So I go into Microsoft Security Essentials and I look in the history of detected items and see this "Trojan:WIn32/Bitrep.A" under the detected item and I remove it every time.
I also Have Malwarebytes: Anti-Malware installed, and it never picked this up on the last scan it did.
I also recently installed, used, and then uninstalled Iobit's Advanced System Care and Driver Booster 5. My computer was slowing down and I had heard good things about these programs and so I tried them out and they seemed to work. Then I researched them out of curiosity and found very mixed reviews on these programs, so I uninstalled them. And after that my computer has been worse off than it was before.
I don't know what to do, anything that can help me fix me computer would be amazing. I have online college classes that start next week, so a better performing computer would be amazing.
Edit: I literally just ran a Malwarebytes Anti-Malware scan and it detected nothing. But while I was running it, the Microsoft Security Essentials popup said "threats are being cleaned, no actions needed." I look at the detection history and see "Trojan:Win32/Cloxer.D!cl" I don't know what's going on with my computer, so any help is greatly appreciated. I honestly have no idea how to fix this.
(Let me know if this doesn't link to the image)
Edited by Amnesia98, 15 May 2018 - 01:14 PM.