Checklists for software errors, setup, and tool workflows.

Windows Activation 502 Bad Gateway: Step-by-Step Fix

When you try to activate Windows and see a 502 Bad Gateway error, it usually means the activation...

Fix Git Clone Permission Denied (publickey) on Bitbucket

You try to clone a Bitbucket repository and see:

Permission denied (publickey).
fatal: Co...

How to Fix Task Scheduler 504 Gateway Timeout

If you see a 504 Gateway Timeout error when running a scheduled task, the task itself isn't the p...

Fix Windows Defender Service Not Starting (Error 0x80070422)

You try to start Windows Defender but get error 0x80070422: “The service cannot be started, eithe...

Fix Windows Update Cleanup Tool Not Working Error

You run Disk Cleanup, select Windows Update Cleanup, and nothing happens—or it fails with an erro...

How to Fix Microsoft Store Not Opening on Boot

If the Microsoft Store fails to launch when Windows starts, you may see no window at all or an ap...