请问到底应该放在什么地方使用啊, 我现在放在桌面上--

所有的步骤都说:

正在清除系统垃圾文件，请稍等......
Could Not Find C:\Documents and Sttings\LV\Desktop\*.tmp
Could Not Find C:\Documents and Settings\LV\Desktop\*._mp
Could Not Find C:\Documents and Settings\LV\Desktop\*.log
Could Not Find C:\Documents and Settings\LV\Desktop\*.gid
Could Not Find C:\Documents and Settings\LV\Desktop\*.chk
Could Not Find C:\Documents and Settings\LV\Desktop\*.old
Could Not Find C:\Documents and Settings\LV\Desktop\recycled*.*
Could Not Find C:\WINDOWS*.bak
Could Not Find C:\WINDOWSprefetch*.*
The system cannot find the file specified.
The system cannot find the file specified.
The system cannot find the file specified.
Could Not Find C:\Documents and Settings\LVLocal SettingsTemporary Internet File
s*.*
Could Not Find C:\Documents and Settings\LVLocal SettingsTemp*.*
Could Not Find C:\Documents and Settings\LVrecent*.*
清除系统LJ完成！

Press any key to continue . . .

应该怎么办? 求帮助, 谢谢!