The next major release of the world’s most installed personal computer operating system, Windows 7, will officially ship to the public on October 22.

According to Microsoft, Windows 7 has been designed to be compatible with Vista, so users do not have to invest in new hardware.

Microsoft’s Steve Guggenheimer said Microsoft will introduce an upgrade option so PC makers and retail partners can offer customers the ability to purchase a Windows Vista-based PC and install Windows 7 when it is released.

When Vista was launched many users expressed frustration that the operating system did not work with all types of existing hardware and peripherals, or programs used commonly on PCs.

Guggenheimer said, “we’ve received great feedback from our partners who are looking forward to offering Windows 7 to their customers in time for the holidays.”

Windows 7 will also have “comparable system requirements” to Vista, which should mean that if your PC is capable of running Vista, it will also run the new version. It also promises major usability improvements on Vista, and a simplification of security measures.