Whether you're trying to eke out a few more years on an aging PC or have been dragging your feet on a Windows 11 upgrade, ...

Microsoft no longer supports Windows 8.1. If you're still running it on your PC, you're long overdue for an upgrade. Lance is an experienced writer who tries to unravel the mysteries of personal tech.

If a Windows upgrade has ever gone sideways on you, you know how vague and unhelpful the error messages can be. Here are my go-to troubleshooting tricks when that happens.