Windows 11 Versions, Errors and Known Issues

Windows 11 troubleshooting depends on the installed release and build. Check yours before assuming a workaround applies.

Protect your files first

Back up important files when possible. If the drive is encrypted, locate the BitLocker recovery key before recovery changes. Stop if storage appears to be failing or this is a work or school managed PC.

Windows 11 releases

Windows 11 26H2 Windows 11 26H1 Windows 11 25H2 Windows 11 24H2

First verify your version

Press Windows + R, type winver, and record the version and OS build. A browser cannot automatically read your local Windows build. Use the exact release and your PC model when checking an error.

Keep track of your checks

This checklist stays in this browser session. It is not sent to WinErrors.

I recorded the exact error and Windows build I checked backup and BitLocker recovery-key access I noted what happened after one safe step

Official references

Microsoft Windows 11 release information