Now a lot of people have been installed on the Win7 system, we all know that the Win7 system has a lot of versions, but many people on their own computers will be pre-installed Win7 family version and the family of Advanced edition, so some people feel that the family version has not been able to meet their needs, So will go to buy Win7 upgrade key, but recently a user said he purchased the upgrade key to enter the password when the wrong, but even if the upgrade is canceled, but again open windows Anytime Upgrade will not prompt to enter the key, but will direct key verification, So how do you modify the input error? Now the little knitting is bringing Windows7. Upgrade key input Error What do you do? After we have lost the WIN7 authentication key, a Windowsanytimeupgrade entry is automatically generated inside the Registry Editor, and the user's incorrect key is recorded in a key value in the entry. So you just need to delete the Windowsanytimeupgrade entries in the registry.
1, first click "Start"-"run", in the Run dialog box input regedit and press ENTER, open Registry Editor;
2, in the Registry Editor window to the left to expand positioning to "Hkey_current_usersoftwaremicrosoftwindowscurrentversionwindowsanytimeupgrade";
3, then the "Windowsanytimeupgrade" item can be deleted, click OK to exit Registry Editor.
Simple three steps, for you to solve the problem of WINDOWS7 upgrade key input Error