1. http://www.cdw.com/content/brands/microsoft/xp-end-of-life.aspx 2. http://www.technipages.com/windows-8-solve-failure-upgrading-windows-error.html 3. http://www.howtogeek.com/163452/everything-you-need-to-know-about-the-blue-screen-of-death/ 4. http://www.zdnet.com/why-the-blue-screen-of-death-no-longer-plagues-windows-users-7000021327/?s_cid=e552&ttag=e552 5. http://webobjects.cdw.com/webobjects/media/pdf/Microsoft/XPEndofLife/Windows-XP-EOL-Migration-Solutions-Article.pdf 6. http://www.zdnet.com/few-enterprises-have-completed-windows-xp-migration-study-7000021021/ 7. http://www.vmware.com/files/pdf/techpaper/vmware-windows7-migration-research-paper.pdf