Registry editing has been disabled by your administrator.

Here are two ways to enable the registry editing in Windows.

1- From Group Policy Editor

Go to Run –> gpedit.msc

In the left hand menu, go to User Config –> Administrative Templated –> System.

Now In the right hand pane, select “Prevent access to registry editing tools”.

It will probably be not configured or enabled.

If it’s enabled, disable it and if it’s not configured, first enable it, apply settings and then disable it.

Most probably the settings have been applied instantly. If not, then run gpupdate in command prompt to apply the group policies.

2- From the Run Menu

I got this tweak while surfing the internet. Go to Start –> Run, copy and paste the follow in the Run box and press OK.

1.REG add HKCUSoftwareMicrosoftWindowsCurrentVersionPoliciesSystem /v DisableRegistryTools /t REG_DWORD /d 0 /f

The effects are usually instant. If not then you should see the results after restarting your computer