Simply open your registry and find the key below.
To create a new tip, click on Edit | New | String Value and name the value by incrementing the existing values. Double click on your newly created entry and enter any text you want.
To delete, simply highlight the enter and either hit the <Delete> key or choose Edit | Delete.
Key:[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Tips]
Data Type: REG_SZ
