Do you know what SysDefenders is?
SysDefenders is a fake and malicious program which is able to completely destroy your operating system. SysDefenders like InSysSecure, SysProtector, PCprotectar are fake programs that are geared towards trying to obtain your hard earned money. You need to be warned to never download, install or click on anything related to SysDefenders, as it is all one big scam. Even if things look real, if it related to SysDefenders, then it is fake. SysDefenders is only going to invade your privacy, cause you many computer problems and steal your money.
In non-techie terms:
The best advice that can be offered is for you remove SysDefenders immediately upon detection. It is strongly advised that you rather make use of a decent and up to date antispyware removal tool that is able to both detect as well as automatically delete SysDefenders for you. Be warned to never buy, download or install anything even remotely associated to SysDefenders.
Aliases: Sys Defenders, rogue.SysDefenders