If you still use PS/2 mouse, you can optimizing your mouse by change the sample rate. Start -> control panel -> switch to classic view -> mouse properties -> Hardware -> PS/2 Compatible Mouse -> Propertie -> Chnage the sample rate value to 200 then restart your computer.

Write on notepad :

[ExtShellFolderViews]
{BE098140-A513-11D0-A3A4-00C04FD706EC}={BE098140-A513-11D0-A3A4-00C04FD706EC}
[{BE098140-A513-11D0-A3A4-00C04FD706EC}]Attributes=1
IconArea_Image=file name.jpg
IconArea_Text=0xcc00aa
[.ShellClassInfo]
ConfirmFileOp=0

Then save as "desktop.ini" and dont'forget to copy "desktop.ini" file and image file to your flash disk.