XP deletes the registry garbage after XP error solution

Computer shop news I am a non-computer professional rookie. I want to ask some questions. I am using the Windows XP operating system. I used the optimization master to delete the ** information of the registry of my system. But then the operating system has a series of problems. For example, you can't open the Windows Media Player player. The pop-up prompt says "There is an error inside the application". The user account interface in the control panel is open. Click on the "Search" button in the toolbar. Only one icon appears on the right side of the screen. Blue and a puppy, but can't see any text. What should I do, I must help me! Windows stores its configuration information in a database called the registry, which contains the configuration files of each user in the computer, information about the system hardware, and the installed programs. Property settings, Windows constantly cites this information as it runs. However, Windows XP has canceled the Scanreg automatic backup that was originally used in Windwos98/Me. Instead, it chooses to press the “F8” function key during the startup process, and then automatically repair it with “last correct configuration” This trick is generally used to deal with serious failures that cannot start the system, so there is no guarantee that your problem will be valid. In addition, you can also try the system restore function, the probability of repair is quite large. Click “Start”→“All Programs”→“Accessories”→“System Tools”→“System Restore”Menu Items, Callout System Restore”Dialog Box, select “Restore my computer to an earlier time” item. Then click “Next”, select an earlier restore point, then click “Next”Confirm. Windows XP will reboot the system, restore the system settings to the specified time, and give you a prompt to complete the recovery. If your Windows XP System Restore feature is turned off, click the "Start" "Start”→“Control Panel”→“System” item and click “System Restore” tab to remove “ “√” in front of the Close System Restore check box on all drives. Last but not least, general registry optimization software should be used with caution, and it is best to back up the registry before using it.