Checklists for software errors, setup, and tool workflows.

How to Check Windows Activation Status Using Built-in Tools

When Windows is not activated, you may see a watermark on the desktop, lose access to personaliza...

Task Scheduler Not Running on Windows 10: Fixes That Work

You set up a scheduled task in Windows 10, but it never runs. The status might show “Ready” or “R...

Fix Windows Update Invalid Configuration Without Reinstall

You try to run Windows Update and get an error like 0x80070002 or a message that the...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Windows Update Connection Refused Due to Proxy Settings

When Windows Update reports a 'connection refused' error, it's often due to a misconfigured proxy...

Fix Windows Defender Error 0x80073b01 (Crash on Startup)

If Windows Defender crashes on startup with error code 0x80073b01, the antivirus service may be f...