Universal Virus Sniffer (uVS)

Unblockers:
http://www.drweb.com/unlocker/mobile/
http://sms.kaspersky.ru
http://virusinfo.info/deblocker/
http://www.symantec.com/connect/blogs/keygenerator-sms-ransomware-threat

Removal tools:
Dr.Web CureIt!
Kaspersky Virus Removal Tool (AVPTool)
Malwarebytes Anti-Malware
AVZ

Antirootkits:
RKU
TDSSKiller

Free antivirus:
Avira
Avast

Firewall:
Comodo
Uninstall (msicuu2):
Windows Installer Cleanup utility

Registry backup
ERUNT

Unlockers:
Unlocker

Browsers:
Mozilla Firefox Adblock Plus NoScript Flashblock
Opera
Google Chrome
Microsoft Internet Explorer

Other:
Пакеты обновления Windows
Java
7-Zip
Adobe Reader
Adobe Flash Player
FoxIt Reader
DirectX
Microsoft.NET Framework 2.0-3.5
Microsoft.NET Framework 4