Win7 upgrade key accidentally input error What to do

win7 upgrade to the win7 version of the function you want, many times we are to keep our original computer settings, but if you are upgrading, accidentally enter the wrong key If you don't understand the principle of win7 upgrade, then you are tragedy. Because you quit to re-upgrade, the next time you go directly to the verification key, then you can only be wrong. The following 355189 Xiaobian teaches you how to do the win7 upgrade key accidentally input error.
1
The principle of win7 upgrade key
When you first enter the key, win7 will generate a file in your registry, the next time you want to upgrade win7 will directly call this file . This is also the first time you entered an error, and there is no reason to enter the opportunity. We only need to delete this file.
2
Delete the registry file.
Enter the registry editor, enter: regedit to enter, and then locate HKEY_CURRENT_USERSoftware Microsoft WindowsCurrentVersionWindowsAnytimeUpgrade, delete the WindowsAnytimeUpgrade item. OK to get it.
The above is about the win7 upgrade key accidentally input error what to do. Warm reminder, sometimes the system can not blindly pursue the high version, the best version is the best version.