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

Jupyter Notebook Token Not Working? How to Reset Password

You start Jupyter Notebook, see the token prompt, paste the token from the terminal, but it fails...

How to Fix Windows Defender Proxy Error

If you see a proxy error in Windows Defender—often something like "Your IT administrator has limi...

How to Fix 'File Locked by Another Program' in Windows Security

You try to delete, rename, or move a file and get the error “The action can’t be completed becaus...

Fix Windows Search Access Denied for Administrator Account

Why You See 'Access Denied' as Administrator

You're logged in as an administrator, but Wi...

How to Fix GitLab Runner Pending Infinite Loop

If your GitLab CI/CD jobs stay in a pending state indefinitely and never start running, you may b...

Fix Windows Activation 502 Bad Gateway DNS Error

If you see a 502 Bad Gateway error during Windows activation, it usually means y...