Checklists for software errors, setup, and tool workflows.

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Fix Gradle Build: Could Not Find or Load Main Class

When a Gradle build fails with Could not find or load main class, it usually means t...

Microsoft Store SSL Certificate Error: Troubleshooting Checklist

You open Microsoft Store and see an SSL certificate error—maybe “ERR_CERT_AUTHORITY_INVALID” or a...

Fix Windows Activation After Hardware Change

If you recently upgraded your PC's motherboard, CPU, or hard drive and now see “Windows is not ac...

Fix PowerShell Token Expired Not Refreshing Automatically

If you're using PowerShell with Azure, Microsoft Graph, or Exchange Online modules, you may encou...

Fix 'nvm not recognized' Error on Windows 10

When you type nvm version in Command Prompt or PowerShell and see 'nvm' is not...

Windows Defender Configuration for Maximum Protection
Windows Defender (now Microsoft Defender Antivirus) provides solid baseline protection, but defau...