Most PCs from the past 15 years can run Windows 11. PCs sold with Windows 10 can usually upgrade after a registry edit. On older or unusually configured PCs, a third-party utility might be required.

Flyoobe, a tool that people use to skip Windows 11's hardware requirements and optimize the experience, received a new update, which now allows upgrading to Windows 11 on PCs with unsupported CPUs.

Hundreds of readers have completed upgrades using ZDNET's help. In general, they report the upgrade is easy, with few issues. For those who had problems, there were typically simple fixes. Microsoft's ...