Well I didn't try that bat I can tell you this... If I install windows without that tweak everything is ok. But, if i apply that tweak under loged user and then create new user and log in as him, icon will be gone(for new user. Old one will be fine...)... So, that tweak is no advisable in any way. It should not be used. Still, I have few more question not related to topic problem but it's about registry tweaks. I would appreciate your thoughts on this. 1. I want to remove wallpaper for users(or atleast the one windos log on to first) and make background colour black. For that i use this tweaks: No Wallpaper [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Desktop\General] "BackupWallpaper"="" "Wallpaper"="" ;Black desktop color [HKEY_CURRENT_USER\Control Panel\Colors] "Background"="0 0 0" But that doesn't work. I tried putting this tweak in HFSVCPACK and HFGUIRUNONCE. Nothing changed. They are not applied... 2. In my winnt.sif i have [UserData] FullName="XP" ComputerName=COMPUTER Name "XP" is applied but ComuterName is not. It was before. I see now that there is no "" around COMPUTER. I'll try it immediately... EDIT Tried adding "" around COMPUTER in WINNT.SIF. Didn't help... Computer name is still some random letters... 3. Is there any way to fill in some stuff in post-install wizard? I want "not to register with microsoft", "don't want firewall turned on" and so on.. Thanks...