HOLA soy muy nuevo en esto y por lo que he leido en su foro no soy el unico al que le ha pasado èste mi probrema Se me pone como fondo de pantalla azul y un texto que pone Warning: Spyware threat has been detected in your PC. Your computer has several fatal errors due to spyware activity. It is strowly recomended to install and antispyware software to close all security vulnerability. Antispyware software help protected your Pc against spyware another security threats. Clik here to scan your pc for spyware.... Este es un archivo que se llama default.htm y se graba en c:/windows. Tantas veces lo borro tantas veces lo vuelve a poner.
Si apretamos allí se abre una pagina de Internet con una información Top rated spyware removers.
Entre todo esto de vez en cuando se abre una pantalla de Windows Security center system warning con la detección de:
c:/windows/ati2dvag32.dll
c:/windows/temp/salm.exe
c:/windows/msapasrc.dll
c:/windows/saiemod.dll
trojandownloader.xs

También a mano derecha inferior de la pantalla se coloca un icono amarillo con un signo de exclamación y de él sale un globo que en su interior incluye alguno de estos mensajes:
- Internet attack attempt detected, somebody's trying to infected your pc with spyware or harmful viruses. Run FULL SYSTEM SCAN now to protect your system from internet attacks, hijackthing attempts and spyware.!
- Your computer is working slowly. Slow operation speednight have been caused by spyware. Download latest antispyware software and run FULL SYSTEM SCAN to remove viruses and spyware.!
- Warning. Your computer is infected with spyware. Help to protect your computer and remove spyware.!
- Your computer is infected with spyware windows has detected spyware infection on your pc. It is recommended to update your antispyware protection to prevent data loss. Click here to download and install the most up-to-date antispyware for you.!
- Your security and privancy are at risk! Spyware has been detected on your computer! Click here to run a FULL SYSTEM SCAN to protect your data.!
- Your computer is not protected against spyware. Spywareable to steal your data including passwords, credit card numbers, etc. Scan your computer for spyware immediately.!

no se de donde bajar el hijackthis y no se operarlo.


gracias de antemano y en lo que me puedan ayudar se los agradecere.