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1. First  go to ADD/REMOVE  Programs found in your  Windows Control Panel( if running  Windows) you will find all kinds of  programs that were added without your  full knowledge after visiting websites or downloading programs
2. Download  REVO UNINSTALLER -30 day trial to completely remove programs. It has very powerful features to uninstall and remove programs.
3. Despite this  action you will notice  extra toolbars and popup  ads, Registry Cleaners, Optimizer and lots and lots of others
4. Format a handy spare USB  minimial size is  4 gigabytes
5. Download a Universal USB  Installer  at  http://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/
6. Follow the instructions to install on the flavour choice on your  FlashDrive( USB Drive)
7. Map the  Linux OS to your  USB drive
8. Download  anti-virus and  anti-malware definitions, watch video  video
9. Go  to Kapersky  Rescue Disk page  http://support.kaspersky.com/8092

Kapersky:

http://support.kaspersky.com/8092
Sophos:
http://www.sophos.com/en-us/support/knowledgebase/52011.aspx
Vipre:
http://www.vipreantivirus.com/live/

Courtesy of Reddit:
http://rtechsupport.wikia.com/wiki/Antivirus_Bootable_and_Recovery_CD_List_(most_are_free)

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1. Make sure computer is turned off

2. Install the flashdrive into the  USB

3. When computer is starting up you will need to

   press F8 or F12 depending on your computer so you can tell

   Configure the computer to boot from

   the USB

   Removable Device

   Use the Delete or F2 keys, to load the BIOS menu. The keys F1, F8, F10, F11, F12 might be used for some motherboards, as well as the following key combinations:
   • Ctrl+Esc 
   • Ctrl+Ins 
   • Ctrl+Alt  
   • Ctrl+Alt+Esc 
   • Ctrl+Alt+Enter 
   • Ctrl+Alt+Del 
   • Ctrl+Alt+Ins 
   • Ctrl+Alt+S