Microsoft Notepad is a word processing tool included with Windows. You can use it to create a log-type file that adds the current date and time each time the Notepad file is opened. Here's how to create a log file in Notepad:
Select Start, enter Notepad, and select it from the results.
Type .LOG on the first line, and then press ENTER to move to the next line.
On the File menu, click Save As, type a descriptive name for your file in the File name box, and then click OK. When you next open the file, note that the date and time have been appended to the end of the log, immediately preceding the place where new text can be added. You can use this functionality to automatically add the current date and time to each log entry.