For XP system users, the system is upgraded to upgrade to the Win7 system, but the system appears with an "error code: 0xc004f061" Prompt after the serial number is entered. Why is this happening? In fact, this is because the serial number provided by the user is "upgrade serial number", and the upgrade sequence number is not a net installation. So what should we do when we meet this situation? Follow the small series together to see it!
The method is as follows:
1, installation does not enter the serial number, directly ignored, the system will prompt you to have 30 days activation period;
2, enter the system, without any upgrades, directly open REGEDIT.EXE modify the registry;
3, the Mediabootinstall key value under the hkey_local_machine/software/microsoft/windows/currentversion/setup/oobe/address is changed from 1 to 0, and saved;
4, input modify the value;
5, in the beginning of the menu search cmd, as an administrator to open;
6, input slmgr/rearm, return to wait for confirmation box to appear;
7, restart and re-enter the serial number, activation will prompt success.
The above is the WIN7 system upgrade installation input serial number display error code solution, the method is limited to genuine WINDOWS7 serial number and installation procedures, if the user just in line with this situation, then may wish to follow the above method set!