New
#211
Please try this fix when doing a clean install using an upgrade DVD:
Start > Run > Regedit
"HKLM\Software\Microsoft\Windows\CurrentVersion\Setup\OOBE\MediaBootInstall" = "0" (DWORD)
Note: Dword value is one. Change it to Zero
Open an Elevated Command Prompt (Command Prompt as administraor)
Type cd \windows\system32
Hit Enter
Type cscript.exe slmgr.vbs –rearm
Hit Enter
Reboot
Attempt to activate using the same product key