Software Applications Programming Errors and solutions.

Group policy Update or refresh through command line GPUPDATE is a command to update or refresh group policy as per current changes. syntax of GPUPDATE command is as follows. gpupdate [ /target: { computer | user }] [ /force ] [ /wait: value ] [ /logoff ] [ /boot ] Example of gpupdate command is as follows you can try on command line gpupdate gpupdate /target:computer gpupdate /force /wait:100 gpupdate /boot if you want more description then you can  visit this link http://support.microsoft.com/kb/298444/

DBMS stands for Database management system. DBMS consists of a collection of interrelated data and set of in build standard programs to access those data. Goal of DBMS is to provide environment that is convenient and efficient to use in retrieving and storing data. Some  benefits of DBMS are Reduced data redundancy and inconsistency. Data can be shared in DBMS. Standards of DBMS can be enforced. Security restriction can be applied. Integrity of data can be maintained. Data independence  or Abstraction could be achieved.

Best for data recovery software 1. Disk Getor Data recovery 2. Nero 11 in build recovery tool 3. Recuva 4. Easeus data recovery pro -There are many as per the situation and type of recovery you want to conduct. IMHO you can not judge any particular one as "The Best". Still if you want me to name a few I'll go for EASEUS Data Recovery Wizard Professional or GetData.