Hello Everyone, This forum has helped me to enable the "Best Performance" option for all users that will be created in the future via editing the NTUSER.DAT in the Default User folder in Windows XP, but enabling it in Windows 7 seems to be a real pain in the a** First of all I'm not sure which NTUSER.DAT to edit, there is a Default User folder but also a Default folder under C:\Users Also, if I load the NTUSER.DAT, the UserPreferencesMask option is no longer listed, I tried adding it, but no success.. I read several thread in which they said the changes they made in the NTUSER.DAT for the default user did not stick, so maybe it needs to be done differently? This is the batfile I used in Windows XP, which did the trick: REG LOAD "HKU\Test" "%SystemDrive%\Users\Default\NTUSER.DAT" REG ADD "HKEY_USERS\Test\Control Panel\Desktop" /t REG_BINARY /v UserPreferencesMask /d 90120180100000 /f REG ADD "HKEY_USERS\Test\AppEvents\Schemes" /ve /d ".None" /f REG ADD "HKEY_USERS\Test\Software\Microsoft\Windows\CurrentVersion\Explorer\VisualEffects" /t REG_DWORD /v VisualFXSetting /d "00000002" /f REG UNLOAD "HKU\Test" Thanks in advance for your time!