1 Click XP Repair Pro is a software to repair common error in Windows. It supports more than 53,000 errors that occur in Windows. It allows to repair system errors and incorrect information in Windows Registry. An optimizer eliminates duplicate and obsolete keys to improve the performance of the system up to 750%. After scanning the system, you can view the complete list of detected errors and choose which one to remove. Moreover, it supports DLL and ActiveX files. The software is a shareware version in English.