How to delete the operation trace in the hotel management system for knowledgeable people?

Under normal circumstances, the operation log cannot be deleted.

Clear recent document records. Taking WindowsXP as an example, right-click the Start button, select Properties, click the Customize button in the pop-up Settings Taskbar and Start Menu Properties dialog window, and click Clear List under the Advanced tab in the Customize Start Menu dialog box. In order to make the system never flatter yourself, remember to use the records of documents, please uncheck the box before "List my recently opened documents".

. Delete the contents of the temporary folder. When installing software, opening documents and other operations, the corresponding files will be left in the temporary folder. You can manually clear the contents in the following locations: C:\Windows\Temp, c: \ DocumentsSandSettings \ User Name \ Local Settings \ temp. If you are prompted that the file is in use when deleting, you need to close the relevant programs, and it is best to restart before deleting.