1-1 Download iTopsoft Register Optimizer by clicking: http://www.itopsoft.com/download/iro_setup.exe

1-2 Double click the setup file and install the program.

1-3 Run the program and get the register window, fill in the register keycode as following:

1-4 Press "Register" button and you will get a register confirm window as following:

1-5 If you do not have a valid keycode, please purchas one by pressing "Buy Now" button or clicking http://www.itopsoft.com/itopsoft-register-optimizer/buy.html online.

2-1 Scan window. You may select scan items at this window.

2-2 Scanning Result. You may get following window after pressing "Scan" button, and you may press "Repair" button to repair the scanned errors.

2-3 You will get a registry backup warnning as following before repair registry errors. Press "OK" to continue the repairing action.

2-4 You will get a reapir confirm message as following after repairing completed.

2-5 Repair result. You may check repair result after compair completed.

2-6 Registry restore. You may restore your registry to avoid abnormal repair from saved registry files.

2-7 Registry backup option. You may determin backup registry or not before repair errors.

2-8 Repair records. You may check repair histry at this tab.

2-9 If you like it, you may have a try by clicking http://www.itopsoft.com/download/iro_setup.exe