Ok thanks to swgreed ,slimzky,war59312,Yzöwl and everyone for submitting bugs/errors and additions I have re updated the tweaks again would like some clafication on the following chages that have been put to me 1. line 768: "Shotcut to" syntax is wrong (square brackets missing) & also double entry, see line 915...can some explain this to me ? 2. line 689: also comment out "SecondLevelDataCache" & also double entry, see line 954 but add: "LargePageMinimum"=dword:ffffffff and "SystemPages"=dword:ffffffff here...again this is not very clear to me.... 3. ; Lines 1700-1701 reads [-HKEY_CLASSES_ROOT\Directory\Background\shellex\ContextMenuHandlers\NvCplDesktopContext] @="{A70C977A-BF00-412C-90B7-034C51DA2439}" ; Should either read [HKEY_CLASSES_ROOT\Directory\Background\shellex\ContextMenuHandlers\NvCplDesktopContext] @=- ; or read [-HKEY_CLASSES_ROOT\Directory\Background\shellex\ContextMenuHandlers\NvCplDesktopContext] I need some clafication of which key is correct 5. ; The following lines can all be removed since you cannot remove a subkey from a key which has already been removed 2258, 2262, 2266, 2270, 2271, 2275, 2391 Again some clafication Thanks for everyones help ! please report back asap and I will upload the new Regfile for your viewing... Here is the current changelog Removed "Adds My Network Places to MY Computer" as it wasnt working Added "Removes "Map Network Drive" & "Manage" from My Computer context menu" Added "Adds Command Window to right click of MY Computer" Fix "[HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion] "RegDone"="1" to Windows NT Fix line 194: "& quot;" after "Heuristics" Fix line 575: "DisableSR": it's the other way round (0=enable, 1=disable)! Fix "Optimize System Cache Size ;-----(THIS WILL!! cause data corruption if you have ATI vid card and 1 gig of ram) ;[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management] "LargeSystemCache"=dword:00000001" Fix double entry of SecondLevelDataCache lines 689 and 954 Fix Double Alexa entries "line 728 does interfere with line 2102: either enable alexa or not" Fix line 870-880: double entries Fix line 2583 & 2605: "Hide Messenger" exists twice Fix ; Lines 1371-1373 reads [-HKEY_CLASSES_ROOT\CLSID\{540D8A8B-1C3F-4E32-8132-530F6A502090}] @="Language bar" "MenuTextPUI"="@%SystemRoot%\System32\msutb.dll,-325" ; Should read [HKEY_CLASSES_ROOT\CLSID\{540D8A8B-1C3F-4E32-8132-530F6A502090}] @=- "MenuTextPUI"=- Fix Line 1579 is a blank key