How do I change back from Windows 7 to Windows Vista?
 

I am starting to work for sunlife Microsoft Office Professional 2007 Activation tomorrow and need my laptop to run Cheap Windows 7 for their software. Currently i have Office 2010 Pro Plus Keygen installed. I want to know if I can split my hard drive and when computer boots I can choose xp or Office 2010 Update Key. So I can use xp for work and windows 7 for home. Since i don't have the cd for Windows 7 Starter Key I don't want to remove it completely. Any suggestions and help would be appreciated!