Win7 system upgrade key input error processing scheme

In general, the brand computer installed system we bought is Win7 Home Basic Edition or Win7 Home Premium Edition, but this system often can not meet the needs of users, many Users will enter the upgrade key to upgrade the system through the Windows Anytime Upgrade function that comes with the system. However, individual users have experienced operational errors.

Error Analysis:

Entering the wrong Win7 upgrade key in Windows Anytime Upgrade, even if you cancel the upgrade, open Windows Anytime Upgrade again will not prompt for the key, but directly Perform key verification. ? How clear it had the wrong key

program are as follows:

1, click the Start button, type regedit in the search box and press Enter to open the Registry Editor Device.

2, expand HKEY_CURRENT_USER \\ Software \\ Microsoft \\ Windows \\ CurrentVersion \\ WindowsAnytimeUpgrade, will WindowsAnytimeUpgrade item deleted.

After a simple two-step, we will be able to re-enter the correct upgrade key. From the method of appeal, we can also see that after the system verifies the key, the key is automatically saved in a key value in the registry, and we can delete it.