try opening notepad and pasting the following information into it...
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableRegistryTools"=dword:00000000
In notepad, go to File, Save... and save the file (using quotes) as "regedit.reg". Now close notepad and double click this file you just saved to merg it to Windows system registry. You should be able to access the registry again after performing this
procedure if you are actually an Administrator.
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableRegistryTools"=dword:00000000
In notepad, go to File, Save... and save the file (using quotes) as "regedit.reg". Now close notepad and double click this file you just saved to merg it to Windows system registry. You should be able to access the registry again after performing this
procedure if you are actually an Administrator.