Microsoft's final version of Windows 8 began to provide download to msdn and technet members. If you are an msdn subscriber, you can download Windows 8 RTM from the msdn subscriber. Many of you installed Windows 8 RC earlier than I did. Since the RC of Windows 7 was difficult to upgrade to RTM, many junk files were left in the system after the upgrade. Windows 8 also wants to upgrade from RC to RTM, so it is Weibo asking for the upgrade secret, basically not getting the secret. Going home at night and trying to upgrade, I found that the upgrade process was very simple. After the upgrade, I found that Windows 8 RC of earlier versions had entered windows. in the old directory, it is equivalent to re-installing Windows 8 RTM and no spam files are found. The remaining question is how to delete the windows. Old directory. For details, refer to how to delete the windows. Old folder in Windows 7?
Search through the "charm" shortcut Toolbar of Windows 8. In the search box, type disk cleanup, click Settings, and then click "Release disk space by deleting unwanted files" in the result list ".
If the system prompts you to select a drive, click the drive to install windows, and then click OK ".
On the "Disk Cleanup" tab of the "Disk Cleanup" dialog box, click "clear system files ".
If the system prompts you to select a drive again, click the drive to install windows, and then click OK ".
Select the "previous Windows installation" check box and any other check boxes corresponding to the file to be deleted, and then click "OK ".
In the message that appears, click Delete file ".
After killing the windows. Old directory, it will be the same as the newly installed Windows 8.