Omg, I didn't imagine, I couldn't even dream to see so many replies, so many absolutely resourceful, useful, professional advices. Thank you all!!!!
I have found my problem. It was Kaspersky Antivirus program. Something happened to it, so it kept working in systray all the time. Maybe it continuously tried to initialize so that was eating all my system resources. I have uninstalled it.
Now my system works fine, at home but <img src="/ubbthreads/images/graemlins/puppyeyes.gif" alt="" /> ... <img src="/ubbthreads/images/graemlins/puppyeyes.gif" alt="" /> today at work.
It seems that somebody messed with my PC yesterday. I have 2 more links in favs, new set of toolbars some SearchNugget Toolbar. It is absolutely clear it is ad/spyware.
AdAware found about 60 items to kill, including 2 processes.
But, but Cleansweeper crashes the system everytime I run it. It seems that now it has somehow corrupted.
But anyway, all those things that were described here were very very helpful for me. Thank you.
PS Kyra Uff, the most difficult question is what processes can I kill with Enditall? I have 14 at work and I think even more at home.
Can I kill winlogon or pwic, lsass or svchost (and why do i have 4 svchosts?)
<img src="/ubbthreads/images/graemlins/confused.gif" alt="" />
