Those who use windows operating system are used to lot of error messages and crashes. This is mainly due to problems related to windows registry. For repairing the registry as well as improving the performance of the personal computer or any computing device, Registry Repair Suite 2.1 is a solution. Using this software one can find the invalid links, references as well as entries and problems related to the windows registry due to these. The error list will be shown; manual as well as automatic repairing of the errors is possible with this software. The problems related to the registry such as invalid references as well as missing identities are mainly due to incorrect removal of softwares, corruption of hardware drivers or problem with the start up etc. Detection algorithm identifies the missing links as well as references quickly and hence this software is suitable for windows users.