Knowledge base for software setup, errors, and daily tool work.

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...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

Fix Jupyter Kernel Not Starting on Windows 10

When you launch a Jupyter notebook and the kernel never starts—or shows a 'Kernel error' or 'Conn...

Fix Windows Defender Proxy Error 0x80070422

If you see error 0x80070422 when opening Windows Defender or running a scan, it usually means the...

Git Pull Merge Conflict Troubleshooting Checklist

You run git pull and get a merge conflict message. This is common when your local br...

Fix Windows Defender Permission Denied Registry Error

When you try to modify Windows Defender settings through the registry, you might see an error lik...