What happens to Windows 7 on October 31, 2014?

After October 31, 2014 -- Microsoft will no longer provide its PC partners or systems builders with copies of Windows 7 Home Basic, Home Premium and/or Ultimate to preinstall on new PCs. This means that OEMs will be able to continue to sell their stock of PCs running these versions of Windows 7, but they won't be allowed to replenish their supply.