I use lenovo n500 notebook with windows 7 64 bit Ultimate OS.
I have nod32 antivirus and malwarebytes anti malware software for protection and use default win 7 firewall.
Under tab Unistall or remove programs i have only necessary programs not anything what shouldnt be there.
System usage is normal,.. i try to be careful what i download and install and use anti advertising addons in firefox,..
After some time that happens,..
When I want to write something in google or word,... words ggggggggggggggggggg or hhhhhhhhhhhhhh appear like keyboard was jammed, but it is not,.. some icons start blinking and i cant open some folders,.. so I need to restart the computer.
I changed OS to win8 test and same problem happened after some time,... in my last Os,.. i coulnt log in, so I formated everything,..
This is so damn persistent and I need computer for work so what is that. Nod32 and anti malware scan did not find anything special.
Should i try different anti virus, or is my motherboard failing or what? but that letters, strange,...
Edited by DejanD, 07 October 2014 - 05:01 PM.