According to Mr. Gates of Microsoft, 90% of us computer users use Windows. Also according to him we should all be using or getting ready to use the latest operating system, Windows Vista, from Microsoft. Now the questions - who should really upgrade and which version is the right version for your use - Standard, Basic, Home Premium, Business, Enterprise or Ultimate?

If you are using the latest version of Windows XP Professional, and are up to date on the patches, don’t rush for an upgrade unless you are buying a new computer or are an IT professional developing technology based on the Vista platform.

You may not have noticed but Windows XP also has many versions - Standard, Home, Professional, Enterprise, Tablet PC and Windows Media Center. Very few people use the Standard Version and Enterprise is for the very large enterprises. So I will skip them in my review.

Windows Vista Basic is the upgrade over Windows XP Home with fewer crashes, brand new interface and improved security. You will also get limited access to Windows Mobility Center and Meeting Place. What you do not get is Pluggable log-in authentication architecture, Aero, Rights Management Services (RMS) Client, Tablet PC, DVD Maker, Media Center, Movie Maker regular/HD, Domain join for Windows Small Business Server, Encrypting File System, Integrated smart card management, Group Policy support, Roaming user profiles, Virtual PC Express, BitLocker Drive Encryption, Fax and Scan and ShadowCopy.

Windows Vista Home Premium is the upgrade for previous Windows XP Media Center with fewer crashes, brand new interface, improved security and graphics improvements including DirectX for gaming. You will also get limited access to Windows Mobility Center. What you do not get is Domain join for Windows Small Business Server, Encrypting File System, Integrated smart card management, Group Policy support, Roaming user profiles, Virtual PC Express, BitLocker Drive Encryption, Fax and Scan and ShadowCopy.

Windows Vista Business is the upgrade for previous Windows XP Professional & Tablet PC with fewer crashes, brand new interface and improved security. This is the version I recommend to my customers. What you do not get is DVD Maker, Media Center and Movie Maker regular/HD that are not essential for a business professional.

Windows Ultimate has all features of Basic, Home Premium, Business and some extras for a hefty price. Most systems sold by custom pc makers, HP, Toshiba, Dell and Lenova does not come with Ultimate installed. Microsoft recommends a $199 upgrade Ultimate from Home Premium and Business.