This video tutorial from ballader1 shows how to remove viruses, trojans, adware, spyware from your computer.
To do that you need to download Malwarebytes application from malwarebytes.org.
Open your internet browser and enter malwarebytes.org URL address.
Make sure you download free version unless you want to purchase full version of this program.
Once the installation is complete update the program.
Now download and SuperAntiSpyware application from www.superantispyware.com.
Also make sure you've downloaded free version.
These two programs are very helpful means to protect your computer from viruses, trojans, adware, malware and other computer threats.
Do full system scan regularly and your computer will always be clean and safe.