In making the list of services to disable I realized that the firewall is stopped. I wanted to boot from the control panel but I get this error message:
The Windows Firewall cannot change some of your settings. Error Code 0x80070437.
Then I tried to start the service and then I get this message: Windows could not start the Windows Firewall service on Local Computer. Error 1079: The account specified for this service is different from the account specified for other services running in the same process. This appears to be a problem that are not found, a problem of configuring services but it is very unclear as the message. Does anyone know the solution to return to normal without having to format and reinstall Windows 7 leaves to restore the default security of user account under which I am?