Windows 11 is "the next generation of Windows", Microsoft's new operating system, which will be released in the fall of 2021. The new system received a seriously redesigned interface and new functionality, which will now be tested by insiders using preview builds of Windows 11. Many changes are already known. Unlocked means you can install Windows 11 on PC without Secure Boot and TPM.

Windows 10 October 2018 Update (also known as version 1809 and codenamed "Redstone 5") is the sixth major update to Windows 10 and the fifth in a series of updates under the Redstone codenames.

Windows 7 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009. It is the successor to Windows Vista, released nearly three years earlier.