If you get message "The installation of this package failed" when installing Microsoft Office 2007 Service Pack 1 or Service Pack 2, try these steps : 1. Change the location of your temp folder. Using these steps: a. Make temp folder on your drive. i.e: "D:\Temp" or "C:\Temp" b. Right click "My Computer" , Properties, tab Advanced, button Environment Variables c. Change TEMP value to D:\TEMP (or the folder you have specify on step a. d. Change TMP value to D:\TEMP (or the folder you have specify on step a. e. click OK 2. Install Windows installer 3.1 v2 (WindowsInstaller-KB893803-v2-x86 MS Windows Installer 31v2.exe) 3. Install dotNet Framework 2.0 Then, try install Service Pack again. The above steps are tested in Windows XP Pro Service Packs 2.