Very Dangerous Virus in my Computer!!!!?

I have Trend Anti-virus, and Webroot Spy Sweeper, that some good protection but this is big. I don't know why but my CPU is now 100% and like 80% physical memory. So my computer is real slow. The worst part is I go to scan, and I know my subscription is not expired, I can't scan, IT IN BOTH SPY SWEEPER AND TREND ANTI_VIRUS AND WINDOWS DEFENDER. IN SPY SWEEPER it disable every protection.

Very Dangerous Virus in my Computer!!!!?internet security

Reboot your machine into safe mode. (Shut it down, turn it back on, and as soon as you turn it on, keep pressing the F8 key 2 to 3 times per second until you get a menu that allows you to start in safe mode.

Once in safe mode, see if your trend and/or spysweeper will allow you to do a scan. (Some antivirus products will not allow you to scan when in safe mode, some will)

You can also *try* an online scan from http://www.eset.com/onlinescan/

Depending on the virus it may or may not block that particular scanner. Since it is a lesser known (but VERY GOOD) product, many viruses don't bother blocking that site or their software... The viruses tend to go for easier and/or larger targets like trendmicro, norton, etc.

If that fails, download Spybot search and destroy from http://www.safer-networking.org, install it, update it, and see if it will run. If not, again, reboot into safe mode and do a scan there.

Very Dangerous Virus in my Computer!!!!?network security

are you sure you aren't running any programs in the background? is your CPU and RAM up to date? try finding a free antivirus, such as

http://www.avast.com/eng/download-avast-...

OR

make sure that you dont have too many programs at start up. uninstall some programs if you have to. for managing startup, get regcure. its not free, but is definitely worth it.