Windows 7 upgrade key input error how to do

Nowadays, many people have already installed the win7 system. We all know that there are many versions of the win7 system. However, many people pre-install the win7 home regular version and the home premium version on their own computers, so some people think that the home version I can't meet my own needs, so I will buy the win7 upgrade key, but recently the user said that he entered the password and changed the password after purchasing the upgrade key. However, even if the upgrade is cancelled, it will be opened again. Windows Anytime Upgrade will not prompt for the key, but will directly perform the key verification. How to modify the input error? Now Xiaobian will bring you Windows7 upgrade key input error. After we have finished the Win7 verification key, the registry editor will automatically generate a WindowsAnytimeUpgrade item, the user's wrong key will be recorded in a key value in the item, so only need to put in the registry The WindowsAnytimeUpgrade item can be deleted.
1, first click & ldquo; start & rdquo; --- ldquo; run & rdquo;, enter regedit in the run dialog and press Enter to open the registry editor;
2, in the registry editor window Click on the left side to expand to "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionWindowsAnytimeUpgrade";
3, then delete the "WindowsAnytimeUpgrade" option, click OK to quit the Registry Editor.
Simple three steps to solve the problem of Windows7 upgrade key input error