enable regedit

In: Windows 2000, Windows XP [Edit categories]

[Edit]
Answer
First Method:

Click Start -> Run. Type this commands in Run box and press Ok.



REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0


Then a prompt will come up with this question: Value DisableRegistryTools exists, overwrite (Y/N)? Type yes and hit Enter.


After u did that also type this command in the run box and hit enter.



REG add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0


Then it will also come up with the question: Value DisableRegistryTools exists, overwrite (Y/N)? Type yes and hit Enter.

Second Method:

Click Start -> Run -> gpedit.msc -> User Configuration -> Administrative Templates -> System -> Prevent access to registry editing tools -> Right Click Properties -> Set it to Not Configured.