File search function can not be used, an effective method to make it effective

My computer is based on the Windows XP system. Recently, its file search function cannot be used. When the search interface is closed, the text box of the output file or folder name is gray and cannot be output. What should I do? This is a problem that I often encounter during the use of the computer. How do you solve this problem when you encounter such problems?
Generally, the content you often search for is some of your own documents. If you are regularly stored in the same place, such as my document, then when you want to search for one of the files, you can greatly improve the speed of the search. In this regard, you can close the registry editor, locate [HKEY_CURRENT_USER, Software, Microsoft, Windows, CurrentVersion, Explorer, CabinetState], create a new string value "Use Search Asst", set the value to "no". Review C:, Windows, System32, and Shell32. The dll file is in verbal version, Chinese (0804), English (0600), etc., and the directory names of C:, Windows, Srchasst, mui, and the original 0804 or 0409 are changed to Shell32. The dll speech version is really the same number.
Is the search assistant closed now, is it usable?