Checklists for software errors, setup, and tool workflows.

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Fix 'Turn On Windows Defender Access Denied' Error

You try to turn on Windows Defender, but get an "Access Denied" message. This usually means somet...

Windows Defender Token Expired: How to Fix It

If you see a message that your Windows Defender token has expired, it usually means the security ...

Fix Jupyter Kernel Not Starting in Anaconda

When you launch a Jupyter notebook from Anaconda Navigator or the terminal, the kernel may fail t...

Fix Chrome Profile Sync Server Connection Errors

When Chrome shows 'Cannot connect to sync server' for a specific profile, it usually means the br...

Fix OpenVPN Permission Denied on Tun Device

When running OpenVPN, you might see an error like ERROR: Cannot open TUN/TAP dev /dev/net/t...

How to Fix GitHub Actions Permission Denied Errors
If you see a "permission denied" error in a GitHub Actions workflow run, it usually means the wor...