Checklists for software errors, setup, and tool workflows.

Fix Ubuntu apt update GPG missing key error

When running sudo apt update, you might see an error like:

The following sig...

Fix Windows Update Error 0x80070002: Missing Files

If you see error 0x80070002 when checking for updates, Windows is likely missing a file it needs....

Fix Windows Defender Not Starting Due to Antivirus Conflict

You open Windows Security and see a message that Defender is turned off or not starting. The most...

Fix Windows Search 404 Error by Rebuilding the Index

When Windows Search throws a "404 error" or returns no results, the search index is often corrupt...

Fix Windows Terminal Profile Not Saving Ubuntu Settings

You set up a custom profile for Ubuntu in Windows Terminal, change the icon, font, or starting di...

Fix Windows Defender Command Not Found After Update

After a recent Windows update, you may see an error like 'windows defender' is not recogniz...