As one poster wrote, this is DNS cache poisoning. It has nothing to do with YouTube or malware on your system. You are being redirected even though you type in the URL correctly. What you absolutely should do is change you DNS nameservers. Do not allow them to resolve automatically.Go into Windows Network Connections, right-click on a connection, select properties, then tcp/ip, then properties again. Enter the DNS servers manually. Also, afterwards disable the DNS Client. Start>Run>Services.msc. Then select the DNSClient, stop the service, and disable it. You can read more about this issue here: 1. ht tp://www.pcworld.com/businesscenter/article/152513/how_dns_cache_poisoning_works.h tml 2. ht tp://www.tech-faq.com/public-dns-servers.ht ml 3. ht tp://www.opendns.co m/
You could've clicked on a link in an email or opened an exe that changed your hosts file, some settings inside your browser or the DNS addresses - either way, your computer is compromised, clean it before typing any passwords or God forbid, credit card numbers...
something wrong with your system/internet ... spyware or something already take over your internet browser its not from Youtube,