উইন্ডোজ এ বিভিন্ন অপশন এনাবল/ডিজেবল এর জন্য কয়েকটি রেজিষ্ট্রি কি সেটিং দেয়া হল। start Menu থেকে Run সিলেক্ট করুন এবং regedit টাইপ করে ok দিন।
সাবধানতা ঃ এই কমান্ডগুলো শুধুমাত্র এডভান্স ইউজারদের জন্য। নতুন কেউ আগ্রহী হলে নিজ দায়িত্বে কমান্ড ব্যাবহার করবেন।
1. Disable the Autorun Option in your CD Rom Drive:
Open your Registry and navigate to "HK_L_Msystemcurrentcontrolsetservicescdro m"
Change the value of 'Autorun', or create a new DWORD value if it doesn't already exist, and set the value as '0' for Autorun disabled.

2. Disable the Harddisk Lowdiskspace warning in Windows Xp
User Key: "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesExplorer"
and
System Key: "HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersionPoliciesExplorer"
create a new DWORD 'NoLowDiskSpaceChecks' and change its value to '1'.

3. Disable the Windows Key
"HK_L_Msystemcurrentcontrolsetcontrolkeybo ard layout"
Create a new Binary value, or modify the existing value called 'Scancode Map' as shown below.
Value: 00 00 00 00 00 00 00 00 03 00 00 00 00 00 5B E0 00 00 5C E0 00 00 00 00

4. View System BIOS Information
Open Registry and navigate to
"HK_L_Mhardwaredescriptionsystem"

5. Change the Title of Windows Media Player
"HK_C_USERsoftwarepoliciesmicrosoftwindowsmedi aplayer"
Create a new string value called ' TitleBar' and change text as your wish.

6. Disable Internet access in Network
Open Registry and make the following changes
"KH_C_Usersoftwaremicrosoftwindowscurrentversi oninternetsettings"
Change the value of "Proxyenabled" to 1 and change the value of "proxyserver" and set it to an ip address. Change the value of the ip address and port to "10.0.0.1:5555"

7. Disable the ability to Right click on the desktop
"HK_C_Usersoftwaremicrosoftwindowscurrentversi onpoliciesexplorer"
Create a DWORD "NoViewContextMenu" and change its value to "0" for disabling and "1" for enabling.

8. Hide all items on desktop
"HK_C_USERsoftwaremicrosoftwindowscurrentversi onpoliciesexplorer"
and
"HK_L_Msoftwaremicrosoftwindowscurrentversion policiesexplorer"
create a new DWORD "NoDesktop" and change its value to "1"
You can show all the items in the desktop by chaning the value to "0"

9. Disable the "Change Password" button in windows
"HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesSystem"
and
"HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersi onPoliciesSystem"
Create a new DWORD "DisableChangePassword" and change its value to "0" for disabling and "1" for enabling.

10. Disable the "cancel" button or pressing the "Esc" key while logging on to Windows"
"HKEY_USERS.DEFAULTSoftwareMicrosoftWindowsCu rrentVersionRun"
Create a new string value "NoLogon" and change its value to "RUNDLL32 shell32,SHExitWindowsEx 0"

11. Remove "Log off" from start menu
"HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesExplorer"
and
"HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersionPoliciesExplorer"
Create a new DWORD "NoLogOff" and change its value to "1" for disabling and "0" for enabling.

12. Clear the Recent playlist in Media Player
Navigate to "HKEY_CURRENT_USERSoftwareMicrosoftMediaPlayer Player"
And clear the "RecentFileList" subkey.

13. Empty temporary Internet files on exit (in Internet Explorer)
"HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionInternet SettingsCache"
and
"HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCur rentVersionInternet SettingsCache"
Create a new DWORD "Persistent" and change the value to "0" for emptying and "1" to remove this option.

14. Clear the Internet Explorere typed addresses history
"HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerTypedURLs"
And delete the subkeys.

15. Remove recent documents from start menu
"HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesExplorer"
and
"HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersionPoliciesExplorer"
Create a new DWORD "NoRecentDocsMenu" and change its value to "1".

16. Remove Network connections from start menu
"HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesExplorer"
and
"HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersionPoliciesExplorer"
Create a new DWORD "NoNetworkConnections" and change its value to "1".

17. Remove My documents from start menu
"HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesExplorer"
and
"HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersionPoliciesExplorer"
Create a new DWORD "NoSMMyDocs" and change its value to "1".

18. Remove My pictures from start menu
"HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesExplorer"
and
"HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersionPoliciesExplorer "
Create a new DWORD "NoSMMyPictures" ad change its value to "1".

19. Remove My music fro start menu
"HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesExplorer"
and
"HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersionPoliciesExplorer"
Create a new DWORD "NoStartMenuMyMusic" and change its value to "1".

20. Reboot windows after crash
"HKEY_LOCAL_MACHINESYSTEMCurrentControlSetContr olCrashControl"
Create a new DWORD "AutoReboot" and change its value to "1".Restart the machine for the effect to take place.

21. Disable the use of MSDos
User Key: "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesWinOldApp"
and
System Key: "HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersionPoliciesWinOldApp"
Create a new DWORD "Disabled" and set its value to "1". Change it to "0" for enabling.

22. Enable Directory completion in MSDos prompt
User Key: "HKEY_CURRENT_USERSoftwareMicrosoftCommand Processor"
and
System Key: "HKEY_LOCAL_MACHINESoftwareMicrosoftCommand Processor"
Create a new DWORD "PathCompletionChar " and set it to equal the hex value of the required control character.

23. Quick edit the command prompt
User Key: "HKEY_CURRENT_USERConsole"
and
System Key: "HKEY_USERS.DEFAULTConsole"
Create a new DWORD "QuickEdit" and set its value to "1" for enabling and "0" for disabling.

24. Disable Registry editing
"HKEY_CURRENT_USERSOFTWAREMicrosoftWindowsCurr entVersionPoliciesSystem"
Create a new DWORD "DisableRegistryTools" and change its value to "0" for allowing Regedit and "1" for disabling it.

25. Disable task scheduler
" HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurr entVersionRunServices"
Delete the value from "SchedulingAgent". Usually its value is set to "'mstask.exe".

26. Remove My computer from desktop and start menu
User Key: "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionPoliciesNonEnum"
and
System Key: "HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCur rentVersionPoliciesNonEnum"
Create "{20D04FE0-3AEA-1069-A2D8-08002B30309D}" and change its value to "1" for removing. Change its value to "0" for showing.

27. Show Windows version on desktop
User Key: "HKEY_CURRENT_USERControl PanelDesktop"
Create a new DWORD " PaintDesktopVersion" and change its value to "1" for showing and "0" for removing.

28. Remove My documenst from desktop
Windows 95, 98 and Me
"HKEY_CURRENT_USERSoftwareClassesCLSID{450D8FB A-AD25-11D0-98A8-0800361B1103}ShellFolder"
Windows NT, 2000 and XP
"HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurr entVersionExplorerCLSID{450D8FBA-AD25-11D0-98A8-0800361B1103}ShellFolder"
Modify the value called "Attributes" as "0xf0500174" to hide or "0xf0400174" to show.

29. Disable Scan disk after improper shutdown
" HKEY_LOCAL_MACHINESystemCurrentControlSetContro lFileSystem"
create a new DWORD "DisableScandiskOnBoot" and change its value to "01" for disablng and "00" for enabling.

30. Automatically end Hung programs.
" HKEY_CURRENT_USERControl PanelDesktop"
and
"System Key: [HKEY_USERS.DEFAULTControl PanelDesktop"
Modify the value of "AutoEndTasks" to "1".