report the ACPI MSDM table to the operating system. Microsoft released the following generic product keys that users can enter to avoid product activation on any SLP-enabled computer using the corresponding version of Windows XP: (Please note that the following keys are not volume license keys (VLK). The installation source must also be SLP-enabled by the manufacturer. Microsoft has not publicly released an SLP key for Windows XP Home Edition, but the actual key from any SLP-activated installation of XP Home can be used on any other, regardless of brand. SLP-enabled installation CDs usually supply the needed key automatically, without the user having to enter one.) Note that generic keys for versions of Windows later than XP will install the operating system in trial mode, and will request a new key after the trial period is up. See also Windows Preinstallation Environment Windows 8.1 References External links http://support.microsoft.com/kb/899356/en-us https://technet.microsoft.com/en-us/library/dd727762.aspx https://technet.microsoft.com/en-us/library/bb457078.aspx https://technet.microsoft.com/en-us/library/dd941645.aspx https://technet.microsoft.com/en-us/library/ff793421.aspx https://technet.microsoft.com/en-us/library/jj612867.aspx Windows administration