Mouse and keyboard of my laptop are not functioning well
My computer is running Windows 8 OS Preview. Then I recently installed Avast Internet Security 9 but I also removed it with Avast Uninstall Utility after the installation because its icon does not appear on my Taskbar. Then I installed it again but this time, it didn't work, even the Self-Mode Protection. I restarted my computer and disable my Malwarebytes thinking that it is having conflicts on my Avast installation.
After restarting, I noticed that my mouse and my keyboard are both not functioning. I go to BIOS to check but both are working properly. I plugged another mouse and it worked. I can't log-in now to my Windows because I need to type my password and my keyboard is not working. What is happening with my PC? Can someone please help me?