Checklists for software errors, setup, and tool workflows.

How to Reduce PowerShell High Memory Usage

You open Task Manager and see PowerShell consuming 1 GB or more of RAM. This usually happens afte...

Fix Windows Activation Error 0x80070005 Access Denied

When you try to activate Windows and see error 0x80070005 with the message “Access Denied,” it us...

Fix Task Scheduler Error 0x80070020: Port Already in Use

When you see error 0x80070020 in Task Scheduler with the message "port already in use," it usuall...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

Fix Chrome 'Connection Refused' Error from Firewall Block

When you see "This site can’t be reached – connection refused" in Chrome, it often means somethin...

How to Fix Windows Defender Rate Limit Exceeded Error

If you're seeing a 'rate limit exceeded' error in Windows Defender (now Microsoft Defender for En...