Windows Vista, and Windows XP
C: is most common.
The most common ones are windows family, Mac OS, Linux and Unix.
windows of course
windows of course
Microsoft Windows and UNIX
Windows 7
Windows, mac os, Linux
The most common email programs installed on a PC are Outlook, Outlook Express, Windows Live Mail, and Thunderbird. Outlook Express is used with Windows XP and older versions.
The two most commonly used operating systems are Windows XP and Windows Vista. If you consider all versions of Windows to be the same product, then the most know about operating systems are windows and mac OS X but Linux is used more than mac.So the two most used operating systems are windows and mac. Microsoft even said that Linux is more of a threat than mac.
Windows, mac os, Linux
As the most common OS on the planet , windows is also the most attacked, also in order to be as compatible with third party software as possible it has the most security issues.
The most common dimensions for standard size replacement windows are typically 24 inches by 36 inches, 24 inches by 46 inches, and 24 inches by 60 inches.