My windows 7 is not genuine but is activated. Is it safe to enable windows update?
 

I have Office 2007 Key tomorrow and need my laptop to run Windows 7 Ultimate 64bit for their software. Currently i have Office 2010 32 Bit installed. I want to know if I can split my hard drive and when computer boots I can choose xp or Microsoft Office 2010 64 Bit. So I can use xp for work and windows 7 for home. Since i don't have the cd for Windows 7 Home Basic Keygen I don't want to remove it completely. Any suggestions and help would be appreciated!