Checklists for software errors, setup, and tool workflows.

Fix Windows Activation Update Error 0x80070643

If you see error 0x80070643 during a Windows activation update, the update process has been inter...

How to Fix Windows Security Rate Limit Error

You may see a Windows Security rate limit error when trying to open the app or run a scan. This o...

Fix Microsoft Store Blank Screen When Other Apps Work

You open the Microsoft Store and see nothing but a blank white or gray screen. Other apps—Edge, O...

Fix Command Prompt Update Not Working

If you've tried to update Windows or a specific program via Command Prompt and the update won't r...

How to Fix Windows Defender Not Starting Automatically

If Windows Defender (Microsoft Defender Antivirus) isn't starting automatically when you boot you...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...