Install genuine Windows7 lose serial number prompt error is going on

                  There will also be problems when installing genuine Windows 7. For example, when installing with genuine Windows 7, the error code: 0XC004F061 will be displayed after entering the serial number. In fact, this error indicates that the serial number provided by the user is "Upgrade Serial Number". The upgrade serial number cannot be installed cleanly. And this problem is mainly caused by users upgrading from XP system to Windows7 system.
Solution:
First, do not enter the serial number when installing, directly ignore, the system will prompt you to have a 30-day activation period;
Second, after entering the system, without any upgrade, directly open REGEDIT.EXE Modify the registry, change the MediaBootInstall key value under HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/address from 1 to 0, save;


Run

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Modify the value

3. Search for cmd in the start menu, open it as an administrator, enter slmgr /rearm, wait for the confirmation box after the carriage return;

cmd< BR>
Fourth, restart and re-enter the serial number, the activation will prompt success.

Remarks: This method is limited to the genuine WINDOWS7 serial number and installation program, which may not be applicable to other cracking methods or modified installation programs.